Lighting accounts for upward of 10% of total energy use in average US homes and up to 40% in commercial buildings. Conventional incandescent bulbs are woefully inefficient, with only 5-10% of the electricity consumed converted into useable light and the rest wasted as heat. Compact fluorescent lights (CFLs) are more efficient but have often fallen short in terms of performance and longevity. LED-based buy led high bay lamps (SSL) has made enormous strides since starting out as a novelty niche technology. LEDs are now a viable option in a wide range of applications, as a case study in a residential setting has demonstrated. Moreover, a host of new technologies provide more options in commercial applications as well.
Within the lighting industry, however, leading manufacturers and lighting designers / specifiers recognize that the widespread adoption of energy-efficient light sources will not occur based solely on energy costs. Ultimately, the combination of energy efficiency, design, quality, performance, and price point will determine how much market share LEDs claim against incumbent technologies in commercial and residential applications.
Several years ago, Molex joined with a group of companies and government agencies and begin a project intended to prove that SSL could be used to dramatically reduce energy usage, while providing excellent quality lighting. Results of the Oak Ridge National Laboratories (ORNL) demonstration have now confirmed both the energy savings and how LED lighting quality can be optimized using the right design and technologies.
A collaboration between the US Department of Energy (DOE), ORNL, Schaad Companies, and the Tennessee Valley Authority (TVA), along with Molex and other commercial partners, formed the Zero Energy Building Research Alliance (ZEBRA). The objective of the alliance was to evaluate the impact of various building systems, HVAC methods, lighting approaches, and appliances to identify the highest-performing options.
ZEBRA constructed four residential homes in Oak Ridge, Tennessee within close proximity to the National Lab. Oak Ridge homes # 1 and # 2 were identical in size and appearance, as were homes # 3 and # 4, with differing approaches to construction and subsystems. Lighting was among the subsystems evaluated by the participants. Solid-state LED lighting provided by Molex was installed in home # 4 and its energy usage was compared to CFLs used in adjacent home # 3.
Kevin Willmorth, owner of Lumenique, LLC, designed the LED lighting in home # 4 to demonstrate the capability of LEDs to enhance design, deliver proper illumination levels, and reduce energy use simultaneously. The goal was to make the lighting designs functional and aesthetically attractive . Home # 3 featured CFL and linear fluorescent lighting selected from conventional luminaire showroom sources. The completed design resulted in 2.1 W / ft2 in energy usage for lighting in home # 3 (Fig. 1, left).
Home # 4 featured new Molex custom GU24 120-VAC LED light sources throughout. No commercial fixture products were available at the time of construction, so Lumenique custom-designed fixtures for this application.
What became the first generation of Molex Transcend light sources comprised an LED product powered directly from AC line voltage built into an assembly that easily snapped into a fixture using a standard GU24 socket. With Transcend, Molex wanted to deliver on the promise of bringing led high bay light for sale back to the nature of the plug-in socket of traditional light bulbs but with an LED source.
Lumenique designed luminaires to integrate Molex Transcend light sources, each of which contained a single AC-LED module produced by Seoul Semiconductor and provided roughly 150 lm of warm 3000K-CCT light and consumed 4W of power. The light level was not nearly as high as today's greater than 1000-lm LED light sources, but with a proper lighting design, the team achieved excellent results. Lumenique's design approach focused lighting where it was needed to avoid waste and glare. Moreover, the efficient LED sources enabled a layered approach with accent lighting while still enabling energy reduction relative to house # 3. Indeed, Lumenique calculated optimum light levels in different living areas, utilizing illuminance renderings and numeric calculations to visualize light patterning.
2014年9月28日星期日
Ephesus LED fixtures break into NFL at Phoenix football stadium
Ephesus Lighting has announced that the University of Phoenix Stadium located in Glendale, AZ has installed the company's LED-based stadium lights. The first The Arizona Cardinals have become home NFL (National Football League) team to play on a surface lit by solid-state lighting (SSL), and the NFL Super Bowl will be played under the LED lighting on Feb. 1, 2015.
Ephesus LED fixtures break into NFL at Phoenix football stadium
The latest led high bay light for sale of a major sports venue means effectively that there are no more obstacles to SSL deployment in the sports application. Even two years ago, LED fixtures that could deliver the light levels required for venues were considered too costly and too heavy for broad deployment. We first saw LEDs used effectively in indoor sports applications such as tennis or basketball arenas. Most recently, we saw the lighting of an English Premier League soccer venue with LED-based lighting. And now the most popular and profitable sport in the US has an LED-lit venue.
"We are excited that so many sports and entertainment venues have seen the light and made the switch to LED lighting over the past two years," said Mike Lorenz, president of Ephesus Lighting. "The feedback from fans, players, and broadcasters at venues all across North America who are using our LED sports lighting reinforces that LED is the premier lighting solution for sports and entertainment venues. "
. Indeed, LED-based lighting offers numerous benefits to sports venues starting with energy efficiency Ephesus said the 312 luminaires used in the Phoenix stadium total 310 kW compared to 1240 kW used by the previously-installed 780 metal halide (MH) fixtures - a 75 % reduction. The cooler-running LED lights also reduce HVAC expenses in the venue.
LEDs also offer the ability of instant on and off whereas MH lighting has a relatively long restrike period. With MH fixtures, venues install mechanical shutters to dim or extinguish the lights during ceremonies such as dynamic player introductions. The LEDs can be controlled as required electrically .
Still, an NFL venue would not have transitioned to LED lighting if the implementation did not deliver equal or superior lighting to the legacy fixtures. And as it turns out, LEDs generally deliver higher light levels and more uniform distribution of the lighting. That performance impacts the players, fans in the stands, and the high-definition TV (HDTV) broadcast to homes.
"We selected Ephesus after careful consideration of all the other available options," said Peter Sullivan, general manager and regional vice president for Global Spectrum (a facility management firm) at the University of Phoenix Stadium. "We are confident that their solution will improve lighting for the athletes, fans, and broadcasters, all while reducing energy consumption and eliminating conventional sports lighting maintenance expense. "
LED lighting will certainly be on the largest of stages come February and the Super Bowl with a global audience watching. Most likely we will hear again about the length delay at the 2013 Super Bowl in New Orleans when a temporary power failure led to a long restrike period that delayed play. Ironically, the New Orleans Superdome featured cree xsp series led street light externally and in some public areas of the stadium but not for the playing surface.
"As the host venue for the 2015 Super Bowl, we look forward to demonstrating the benefits of LED technology to a global audience," said Sullivan. Indeed, with its spectacular half-time concert, and of course the game, the Super Bowl will put the Ephesus LED lighting to a tough test.
Ephesus LED fixtures break into NFL at Phoenix football stadium
The latest led high bay light for sale of a major sports venue means effectively that there are no more obstacles to SSL deployment in the sports application. Even two years ago, LED fixtures that could deliver the light levels required for venues were considered too costly and too heavy for broad deployment. We first saw LEDs used effectively in indoor sports applications such as tennis or basketball arenas. Most recently, we saw the lighting of an English Premier League soccer venue with LED-based lighting. And now the most popular and profitable sport in the US has an LED-lit venue.
"We are excited that so many sports and entertainment venues have seen the light and made the switch to LED lighting over the past two years," said Mike Lorenz, president of Ephesus Lighting. "The feedback from fans, players, and broadcasters at venues all across North America who are using our LED sports lighting reinforces that LED is the premier lighting solution for sports and entertainment venues. "
. Indeed, LED-based lighting offers numerous benefits to sports venues starting with energy efficiency Ephesus said the 312 luminaires used in the Phoenix stadium total 310 kW compared to 1240 kW used by the previously-installed 780 metal halide (MH) fixtures - a 75 % reduction. The cooler-running LED lights also reduce HVAC expenses in the venue.
LEDs also offer the ability of instant on and off whereas MH lighting has a relatively long restrike period. With MH fixtures, venues install mechanical shutters to dim or extinguish the lights during ceremonies such as dynamic player introductions. The LEDs can be controlled as required electrically .
Still, an NFL venue would not have transitioned to LED lighting if the implementation did not deliver equal or superior lighting to the legacy fixtures. And as it turns out, LEDs generally deliver higher light levels and more uniform distribution of the lighting. That performance impacts the players, fans in the stands, and the high-definition TV (HDTV) broadcast to homes.
"We selected Ephesus after careful consideration of all the other available options," said Peter Sullivan, general manager and regional vice president for Global Spectrum (a facility management firm) at the University of Phoenix Stadium. "We are confident that their solution will improve lighting for the athletes, fans, and broadcasters, all while reducing energy consumption and eliminating conventional sports lighting maintenance expense. "
LED lighting will certainly be on the largest of stages come February and the Super Bowl with a global audience watching. Most likely we will hear again about the length delay at the 2013 Super Bowl in New Orleans when a temporary power failure led to a long restrike period that delayed play. Ironically, the New Orleans Superdome featured cree xsp series led street light externally and in some public areas of the stadium but not for the playing surface.
"As the host venue for the 2015 Super Bowl, we look forward to demonstrating the benefits of LED technology to a global audience," said Sullivan. Indeed, with its spectacular half-time concert, and of course the game, the Super Bowl will put the Ephesus LED lighting to a tough test.
IES updates LED Lumen Maintenance document
For continuous improvement in technology to be possible, it's critical that corresponding testing standards are established and continue to be reviewed and improved. The solid-state lighting (SSL) industry is no exception. In 2008, IES published LM-80 for recommending how to test led street light wholesale maintenance. Three years later TM-21 was published as a recommendation for projecting long-term lumen maintenance of LEDs using the test data collected per LM-80. Based on the continuous improvement principle, IES is in the process of publishing an addendum to LM-80 and TM-21.
LM-80 and TM-21 have been widely used by manufacturers, testing laboratories, government specifications, and in other ways. On a large scale, the overall LED lumen maintenance information provided and used in the industry has been more consistent since these two documents were published, which demonstrates their benefits.
At the time LM-80 was developed, experts in the IES committee believed that the test duration should be long enough so that sufficient data could be collected to use mathematical models to make a reliable projection. Furthermore, experts also believed that multiple LED case temperatures should be tested in order to make interpolations of the test data, as well as to make comparisons. For these reasons, the current LM-80 document specifies the test duration and requires a minimum of three case temperatures be tested.
Harmonizing LM-80 and TM-21
Right after LM-80 was published, a group of experts in the IES committee continued to develop TM-21. During several years of hard work in the TM-21 working group, experts developed many mathematical formulas based on the physics of LEDs' structures and materials, as well as an empirical data model to exemplify the LEDs' lumen decay behavior.
Meanwhile, experts in the TM-21 working group conducted numerous statistical analyses using more than 40 sets of LM-80 data collected by LED manufacturers and contributed to the TM-21 working group. In order to achieve the goal (desired by industry and governments ) to have one universal model for making long-term lumen maintenance projections, pros and cons of each mathematical model were thoroughly studied in the working group. In the end, engineering judgment was used to derive the final approach presented in TM-21.
The method for interpolation of the in-situ temperature projection recommended in TM-21 requires the test data collected from two case temperatures, versus the original idea of three sets of data. In all practical cases, when an LED is used in an application (in-situ) in which its case temperature is different from the LM-80 test temperatures, the TM-21 instruction is to collect two case temperatures for LM-80 data - one above the in-situ temperature and another below the in-situ temperature -. to make the interpolation The third case temperature required by LM-80 does not have any relevance for such interpolation purposes.
Because LM-80 has been used for laboratory accreditation, the procedures listed in LM-80 must be followed so that an accredited LM-80 report is produced, which is required by the certification bodies (CBs). And in turn the CB's acceptance of an LM-80 report is the measure to meet market-transformation specifications such as Energy Star For the purpose of compliance with LM-80, unnecessarily testing three case temperatures does not add value to TM-21;. rather, it puts an additional burden on the industry. The LM-80 test is lengthy and often costly. If the IES document that sets the basis of all these consequences can be improved, it certainly is the right thing to do for the standard development bodies.
Improvement is the essential message for the LM-80 Addendum This addendum provides new requirements in Section 4.4.2 as such:.. "At least one of the selected case temperatures shall be 55 ° C or 85 ° C These case temperatures are commonly used for industry testing to support direct product comparisons of testing results. "The requirement for a minimum of three case temperatures in the current version of LM-80 has been removed.
In the past few years, vast numbers of LM-80 tests have been performed at case temperatures of 55 ° C and 85 ° C. LM-80 data alone is not very meaningful for one-to-one comparisons, as the test duration is too short in term of LEDs' lumen decay behavior. The comparison usually takes place in the TM-21 projected results. However, if for any reason users want to select a case temperature to review more than one set of LM-80 data, the LM-80 Addendum will still meet this need.
As for the TM-21 Addendum, in the past two years of practice using TM-21, users raised several questions that need clarification. One question is regarding the LM-80 data collecting time interval tolerance. The current version of TM-21 states the data used for projection are collected in 500- or 1000-hour time intervals without specifying the time tolerance. In reality, the data collection often is not in the precise hour, and for the projection purposes, small variations of the time interval do not statistically affect the results. The TM-21 Addendum gives a tolerance of plus or minus 48 hours for collecting LM-80 data. Any data collected within this two-day window should be accepted as the 500- or 1000 hour mark. This clarification will help lab accreditation as well as the overall practice of testing.
The second issue that was expressed regarding led street lighting fixture is the data interpolation. When two sets of LM-80 data are collected with a higher and lower case temperature, one set of data may have a longer testing duration than the other. It was not clear for the users how the interpolation should be made for these two sets of data with uneven test durations.
Per TM-21, test duration directly relates to the total projection period. For example, if a six-time multiplier is used, the projection is 60,000 hours for the 10,000 hour test data, but 36,000 hours for the 6000 hour test data. The TM-21 Addendum explains to users that in the situation with uneven length test durations, the projection can only be based on the test data set with the shorter duration. This is to ensure the acceptable confidence level in the projection result per statistics.
LM-80 and TM-21 have been widely used by manufacturers, testing laboratories, government specifications, and in other ways. On a large scale, the overall LED lumen maintenance information provided and used in the industry has been more consistent since these two documents were published, which demonstrates their benefits.
At the time LM-80 was developed, experts in the IES committee believed that the test duration should be long enough so that sufficient data could be collected to use mathematical models to make a reliable projection. Furthermore, experts also believed that multiple LED case temperatures should be tested in order to make interpolations of the test data, as well as to make comparisons. For these reasons, the current LM-80 document specifies the test duration and requires a minimum of three case temperatures be tested.
Harmonizing LM-80 and TM-21
Right after LM-80 was published, a group of experts in the IES committee continued to develop TM-21. During several years of hard work in the TM-21 working group, experts developed many mathematical formulas based on the physics of LEDs' structures and materials, as well as an empirical data model to exemplify the LEDs' lumen decay behavior.
Meanwhile, experts in the TM-21 working group conducted numerous statistical analyses using more than 40 sets of LM-80 data collected by LED manufacturers and contributed to the TM-21 working group. In order to achieve the goal (desired by industry and governments ) to have one universal model for making long-term lumen maintenance projections, pros and cons of each mathematical model were thoroughly studied in the working group. In the end, engineering judgment was used to derive the final approach presented in TM-21.
The method for interpolation of the in-situ temperature projection recommended in TM-21 requires the test data collected from two case temperatures, versus the original idea of three sets of data. In all practical cases, when an LED is used in an application (in-situ) in which its case temperature is different from the LM-80 test temperatures, the TM-21 instruction is to collect two case temperatures for LM-80 data - one above the in-situ temperature and another below the in-situ temperature -. to make the interpolation The third case temperature required by LM-80 does not have any relevance for such interpolation purposes.
Because LM-80 has been used for laboratory accreditation, the procedures listed in LM-80 must be followed so that an accredited LM-80 report is produced, which is required by the certification bodies (CBs). And in turn the CB's acceptance of an LM-80 report is the measure to meet market-transformation specifications such as Energy Star For the purpose of compliance with LM-80, unnecessarily testing three case temperatures does not add value to TM-21;. rather, it puts an additional burden on the industry. The LM-80 test is lengthy and often costly. If the IES document that sets the basis of all these consequences can be improved, it certainly is the right thing to do for the standard development bodies.
Improvement is the essential message for the LM-80 Addendum This addendum provides new requirements in Section 4.4.2 as such:.. "At least one of the selected case temperatures shall be 55 ° C or 85 ° C These case temperatures are commonly used for industry testing to support direct product comparisons of testing results. "The requirement for a minimum of three case temperatures in the current version of LM-80 has been removed.
In the past few years, vast numbers of LM-80 tests have been performed at case temperatures of 55 ° C and 85 ° C. LM-80 data alone is not very meaningful for one-to-one comparisons, as the test duration is too short in term of LEDs' lumen decay behavior. The comparison usually takes place in the TM-21 projected results. However, if for any reason users want to select a case temperature to review more than one set of LM-80 data, the LM-80 Addendum will still meet this need.
As for the TM-21 Addendum, in the past two years of practice using TM-21, users raised several questions that need clarification. One question is regarding the LM-80 data collecting time interval tolerance. The current version of TM-21 states the data used for projection are collected in 500- or 1000-hour time intervals without specifying the time tolerance. In reality, the data collection often is not in the precise hour, and for the projection purposes, small variations of the time interval do not statistically affect the results. The TM-21 Addendum gives a tolerance of plus or minus 48 hours for collecting LM-80 data. Any data collected within this two-day window should be accepted as the 500- or 1000 hour mark. This clarification will help lab accreditation as well as the overall practice of testing.
The second issue that was expressed regarding led street lighting fixture is the data interpolation. When two sets of LM-80 data are collected with a higher and lower case temperature, one set of data may have a longer testing duration than the other. It was not clear for the users how the interpolation should be made for these two sets of data with uneven test durations.
Per TM-21, test duration directly relates to the total projection period. For example, if a six-time multiplier is used, the projection is 60,000 hours for the 10,000 hour test data, but 36,000 hours for the 6000 hour test data. The TM-21 Addendum explains to users that in the situation with uneven length test durations, the projection can only be based on the test data set with the shorter duration. This is to ensure the acceptable confidence level in the projection result per statistics.
Lighting control requirements will drive building energy reduction
Buildings consume nearly 40% of the world's energy, and in the past 20 years the building industry has focused on sustainability, efficiency, and practical energy-saving solutions for both new construction and retrofits. Energy for lighting represents a disproportionately large share of building energy consumption. The lighting industry is making steady progress toward sustainability via efficient led high bay light for sale products and networks and adaptive controls. Still, lighting designers and specifiers are faced with meeting ever-more-stringent regulatory standards for lighting projects. We will discuss the most demanding requirements here - particularly in terms of required controls and the ASHRAE 90.1-2013 requirements.
Total light management systems can be integrated with building management systems to include astronomic timeclock interface or photosensor control of exterior lighting including façades, signage, and landscapes.
Total light management systems can be integrated with building management systems to include astronomic timeclock interface or photosensor control of exterior lighting including façades, signage, and landscapes.
As the building industry moves slowly toward zero net energy - the goal of the Architecture 2030 (architecture2030.org) program and key in the roadmap of the US Department of Energy (DOE) - the industry is recognizing that lighting controls play a crucial role in . energy conservation According to the DOE, lighting is by far the largest end user of electricity in commercial buildings It consumes 38% of a building's total electricity use -. approximately the same as space heating, cooling, ventilation, office equipment, and computers combined , according to a US Energy Information Administration study published in 2008.
Lighting controls can eliminate 60% or more of the wasted lighting energy in buildings, while enhancing occupant comfort and productivity. They provide flexible control over the lighting in a space, and support energy savings by reducing the amount of power or time the lighting system is in use. Energy is the multiplicative product of, in this case, lighting power and the power-on time during which it is used. Lighting controls can reduce both power and time.
Energy codes and standards
One of the nation's top three building energy codes and standards - Part 6 of Title 24 of the California Code of Regulations, the International Energy Conservation Code (IECC), and ANSI / ASHRAE / IES Standard 90.1 - is used by nearly every state as the basis for local building energy codes. These provide the minimum acceptable energy performance requirements for new construction or major renovations of commercial buildings. They reflect the importance of using lighting controls to conserve energy. They have similar mandatory lighting control requirements for new construction or major renovation projects.
Sometimes referred to as America's primary commercial energy code, the latest version of ANSI / ASHRAE / IES Standard 90.1 was published in October 2013 and is known as Standard 90.1-2013. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE ) partners with the Illuminating Engineering cree xsp series led street light to produce the standard. It provides the minimum requirements for the energy-efficient design of buildings, other than low-rise residential buildings.
Rita Harrold, director of technology for the IES, said achieving the stringency goals established for the 2013 standard presented a challenge in reducing the requirements for lighting. "While interior lighting power densities (LPD) were re-evaluated and most lowered, there continues to be an ongoing concern about maintaining quality of lighting installations for occupant satisfaction and comfort while achieving energy savings, "said Harrold." The focus in the 2013 standard, therefore, was not just on lowering LPDs but on finding ways to achieve savings by adding more controls and daylighting requirements as well as including lighting limits for exterior applications based on jurisdictional zoning. "
Total light management systems can be integrated with building management systems to include astronomic timeclock interface or photosensor control of exterior lighting including façades, signage, and landscapes.
Total light management systems can be integrated with building management systems to include astronomic timeclock interface or photosensor control of exterior lighting including façades, signage, and landscapes.
As the building industry moves slowly toward zero net energy - the goal of the Architecture 2030 (architecture2030.org) program and key in the roadmap of the US Department of Energy (DOE) - the industry is recognizing that lighting controls play a crucial role in . energy conservation According to the DOE, lighting is by far the largest end user of electricity in commercial buildings It consumes 38% of a building's total electricity use -. approximately the same as space heating, cooling, ventilation, office equipment, and computers combined , according to a US Energy Information Administration study published in 2008.
Lighting controls can eliminate 60% or more of the wasted lighting energy in buildings, while enhancing occupant comfort and productivity. They provide flexible control over the lighting in a space, and support energy savings by reducing the amount of power or time the lighting system is in use. Energy is the multiplicative product of, in this case, lighting power and the power-on time during which it is used. Lighting controls can reduce both power and time.
Energy codes and standards
One of the nation's top three building energy codes and standards - Part 6 of Title 24 of the California Code of Regulations, the International Energy Conservation Code (IECC), and ANSI / ASHRAE / IES Standard 90.1 - is used by nearly every state as the basis for local building energy codes. These provide the minimum acceptable energy performance requirements for new construction or major renovations of commercial buildings. They reflect the importance of using lighting controls to conserve energy. They have similar mandatory lighting control requirements for new construction or major renovation projects.
Sometimes referred to as America's primary commercial energy code, the latest version of ANSI / ASHRAE / IES Standard 90.1 was published in October 2013 and is known as Standard 90.1-2013. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE ) partners with the Illuminating Engineering cree xsp series led street light to produce the standard. It provides the minimum requirements for the energy-efficient design of buildings, other than low-rise residential buildings.
Rita Harrold, director of technology for the IES, said achieving the stringency goals established for the 2013 standard presented a challenge in reducing the requirements for lighting. "While interior lighting power densities (LPD) were re-evaluated and most lowered, there continues to be an ongoing concern about maintaining quality of lighting installations for occupant satisfaction and comfort while achieving energy savings, "said Harrold." The focus in the 2013 standard, therefore, was not just on lowering LPDs but on finding ways to achieve savings by adding more controls and daylighting requirements as well as including lighting limits for exterior applications based on jurisdictional zoning. "
Integral LED launches Metropol LED downlights to simplify new installations and conversions
Integral LED has extended its impressive range of LED lamps, strips and panels by launching a much-anticipated line-up of 'Metropol LED' downlights. Extensive research and testing, which has become the hallmark of the Integral brand, has resulted in this new range of ultra-stylish downlights. Every aspect of the 32 models, which are available now, has been conceived with the electrician and maintenance professional in mind. The Metropol led street lighting fixture range delivers a no-fuss, no-nonsense solution, which reduces time spent on-site when installing a new lighting scheme or converting an existing installation.
A thorough review of products currently available in the market place, combined with feedback from the trade and electricians steered the Integral LED design team toward a practical approach across a spectrum of important features. The products incorporate the excellent Sharp brand chip-on-board LED technology delivering uniform and consistent light levels whilst avoiding undesirable shadows Special attention has been paid to the problem of glare which was one of the main problems identified;. glare has been the most common complaint and cause of negative customer experience in residential and commercial applications. The accurate positioning of the recessed LED combined with a unique and optically designed reflector creates a range of low glare downlights with UGR rating of 10 or below, no more squinting.
The range development, inspired by feedback from electricians and contractors has allowed Integral to incorporate many unique features and characteristics in to the range. Integral have continued the use of the simple 'push and lock' connector design, first introduced in their hugely successful LED panel lights.
Integral LED downlights have a generous amount of space between the cut-out and the trim, engineered to allow for the many variations of ceiling, this also provides a margin for error during installation. The robust heavy-duty spring clips which are protected with durable protective covers were similarly inspired by the electrician's on-site experience.
The durable bevels are designed to withstand the knocks of a hectic installation and all of the new designs incorporate a clear diffuser to protect the LED, not just from the installation, dust etc., but also for the life of the product as the diffuser ensures the LED is kept clean, even in the most demanding environments, ensuring optimal lighting performance throughout the life of the product
Integral LED products provide proven reliability as well as excellent energy saving whilst substantially lowering running cost compared to incandescent products and the fact that all Integral products are fully tested at the integral lighting laboratory, based in London, ensures that consistent quality is delivered every time.
"The principle of the new LED downlight range is to save money from the point of installation through to the operational life cycle of the product, just as important was to provide the installer with a" no fuss "product in terms of wiring and final fit , electricians do not want over complicated fixings or wiring to contend with and Integral LED downlights provide the ideal solution with proven performance and a 5 year guarantee "comments Gerald Burke, Sales and Marketing Director at Integral LED.
The downlight range is supplied in 3 cut-out sizes finished in either powder paint white or brushed aluminium The range provides both dimmable and non-dimmable models;. Both cool and warm white versions are available across the product line-up, which delivers up to 550 lumens, all with high CRI and power factor. Finally there are fixed and adjustable versions in all three size formats.
Integral LED have a highly trained team to provide you with a complete specification on all products, this includes downloadable IES data and performance files that are ready to use with Dialux and Relux light planning software. A dedicated customer support team is ready to answer any questions regarding installations or technical questions
"Our vision is to deliver the real benefits of cree xsp series led street light but shaped by the practical know-how from professional trade feedback." Proven energy saving, durability and easy-fit are top of the list in terms of customer demands and we provide solutions to ensure this is achieved "comments Sunil Kotecha, MD of Integral LED.
A thorough review of products currently available in the market place, combined with feedback from the trade and electricians steered the Integral LED design team toward a practical approach across a spectrum of important features. The products incorporate the excellent Sharp brand chip-on-board LED technology delivering uniform and consistent light levels whilst avoiding undesirable shadows Special attention has been paid to the problem of glare which was one of the main problems identified;. glare has been the most common complaint and cause of negative customer experience in residential and commercial applications. The accurate positioning of the recessed LED combined with a unique and optically designed reflector creates a range of low glare downlights with UGR rating of 10 or below, no more squinting.
The range development, inspired by feedback from electricians and contractors has allowed Integral to incorporate many unique features and characteristics in to the range. Integral have continued the use of the simple 'push and lock' connector design, first introduced in their hugely successful LED panel lights.
Integral LED downlights have a generous amount of space between the cut-out and the trim, engineered to allow for the many variations of ceiling, this also provides a margin for error during installation. The robust heavy-duty spring clips which are protected with durable protective covers were similarly inspired by the electrician's on-site experience.
The durable bevels are designed to withstand the knocks of a hectic installation and all of the new designs incorporate a clear diffuser to protect the LED, not just from the installation, dust etc., but also for the life of the product as the diffuser ensures the LED is kept clean, even in the most demanding environments, ensuring optimal lighting performance throughout the life of the product
Integral LED products provide proven reliability as well as excellent energy saving whilst substantially lowering running cost compared to incandescent products and the fact that all Integral products are fully tested at the integral lighting laboratory, based in London, ensures that consistent quality is delivered every time.
"The principle of the new LED downlight range is to save money from the point of installation through to the operational life cycle of the product, just as important was to provide the installer with a" no fuss "product in terms of wiring and final fit , electricians do not want over complicated fixings or wiring to contend with and Integral LED downlights provide the ideal solution with proven performance and a 5 year guarantee "comments Gerald Burke, Sales and Marketing Director at Integral LED.
The downlight range is supplied in 3 cut-out sizes finished in either powder paint white or brushed aluminium The range provides both dimmable and non-dimmable models;. Both cool and warm white versions are available across the product line-up, which delivers up to 550 lumens, all with high CRI and power factor. Finally there are fixed and adjustable versions in all three size formats.
Integral LED have a highly trained team to provide you with a complete specification on all products, this includes downloadable IES data and performance files that are ready to use with Dialux and Relux light planning software. A dedicated customer support team is ready to answer any questions regarding installations or technical questions
"Our vision is to deliver the real benefits of cree xsp series led street light but shaped by the practical know-how from professional trade feedback." Proven energy saving, durability and easy-fit are top of the list in terms of customer demands and we provide solutions to ensure this is achieved "comments Sunil Kotecha, MD of Integral LED.
Lighting and LED manufacturers discuss the state of technology
While it's clear that the lighting industry is rapidly transitioning to LED sources for most mainstream product types, little else remains clear as what has been a staid industry rides the semiconductor rollercoaster for the first time. With The led street light with solar panel vendors preparing their wares for exhibit, we asked a number of industry executives to share their views on the state of lighting technology. The following roundtable includes insight into areas such as dimming and controls while also covering market developments and the evolving LED light sources .
Because we hoped to discuss both the light source technology and developments in lamps and luminaires, we specifically looked for participants with knowledge of both the enabling component and SSL sectors The participants included Chris Bohler, director of innovation in Eaton's Cooper Lighting Business;. Uwe Thomas , vice president of product management at LED Engin; Brian Terao, director of solid-state lighting for Osram Opto Semiconductors; David Bay, corporate engineer at Osram Sylvania; and Gary Trott, vice president of product strategy at Cree.
Illumination in Focus: What are the most important market and technology trends that you see in mid-2014 in regard to LED-based lamp or luminaire design We'd like to hear about topics ranging from product design strategies to features of the end product? to the enabling components and technologies embedded in SSL products.
Gary Trott:. It really feels like - for a lot of the big applications such as residential and commercial lamps, street lights, area lights, downlights, and troffers - that LEDs are a no-brainer now The adoption is happening at such a rapid . rate both for us and the entire industry There are so many companies heavily engaged I was on a long drive today and saw a somewhat rundown convenience store;.. and I look up and see one of our CPY250 LED canopy fixtures When I see that , I know LED lighting is mainstream. It's no longer a question of "Should we do it?" but "Which LED product should I use?"
Chris Bohler: Historically, SSL penetration has primarily been driven by lumens, lumens per watt (lm / W), and lumens per dollar (lm / $), as long as a minimum threshold on reliability and overall product quality could be met More. recently, color quality has reached center stage as flux and price points have overcome the minimum threshold of acceptability in the general lighting markets. Although continuing improvements related to LED and led street lighting Manufacturer flux and efficacy will be necessary, other lighting metrics like color rendering index (CRI) greater than or equal to 90, R9 greater than or equal to 50, and correlated color temperature (CCT) variance, and variance over life, will continue to come into play. To a large extent, these needs are being driven by organizations at the state and federal levels through standards activities such as California Title 24 and related quality standards.
Additional technology trends are being seen in lighting controls that go well beyond simple dimming functions; networked communications in which the lighting fixture is an inherent part of the communication chain; and integrated structures that truly allow for both the optimization and minimization, from a real estate and complexity of design standpoint, of product solutions based on SSL and digitization technologies.
Because we hoped to discuss both the light source technology and developments in lamps and luminaires, we specifically looked for participants with knowledge of both the enabling component and SSL sectors The participants included Chris Bohler, director of innovation in Eaton's Cooper Lighting Business;. Uwe Thomas , vice president of product management at LED Engin; Brian Terao, director of solid-state lighting for Osram Opto Semiconductors; David Bay, corporate engineer at Osram Sylvania; and Gary Trott, vice president of product strategy at Cree.
Illumination in Focus: What are the most important market and technology trends that you see in mid-2014 in regard to LED-based lamp or luminaire design We'd like to hear about topics ranging from product design strategies to features of the end product? to the enabling components and technologies embedded in SSL products.
Gary Trott:. It really feels like - for a lot of the big applications such as residential and commercial lamps, street lights, area lights, downlights, and troffers - that LEDs are a no-brainer now The adoption is happening at such a rapid . rate both for us and the entire industry There are so many companies heavily engaged I was on a long drive today and saw a somewhat rundown convenience store;.. and I look up and see one of our CPY250 LED canopy fixtures When I see that , I know LED lighting is mainstream. It's no longer a question of "Should we do it?" but "Which LED product should I use?"
Chris Bohler: Historically, SSL penetration has primarily been driven by lumens, lumens per watt (lm / W), and lumens per dollar (lm / $), as long as a minimum threshold on reliability and overall product quality could be met More. recently, color quality has reached center stage as flux and price points have overcome the minimum threshold of acceptability in the general lighting markets. Although continuing improvements related to LED and led street lighting Manufacturer flux and efficacy will be necessary, other lighting metrics like color rendering index (CRI) greater than or equal to 90, R9 greater than or equal to 50, and correlated color temperature (CCT) variance, and variance over life, will continue to come into play. To a large extent, these needs are being driven by organizations at the state and federal levels through standards activities such as California Title 24 and related quality standards.
Additional technology trends are being seen in lighting controls that go well beyond simple dimming functions; networked communications in which the lighting fixture is an inherent part of the communication chain; and integrated structures that truly allow for both the optimization and minimization, from a real estate and complexity of design standpoint, of product solutions based on SSL and digitization technologies.
Lutron will supply data loggers to customers needing to justify lighting control projects
Lutron Electronics has announced that it will supply customers with data loggers that can be used to monitor the lighting and personnel use of a space, and in turn enable reliable projections of the value that controls could add to a lighting retrofit project. led high bay light supplier can be directly tied to energy savings that can be realized through the use of controls, and Lutron will supply the small data-acquisition devices for free to customers that register qualifying projects.
Lutron will supply data loggers to customers needing to justify lighting control projects
Lutron has documented a number of lighting projects where controls deliver substantial savings beyond what can be achieved by energy-efficient light sources alone. For example, case studies released late last year covered shared commercial work areas and hotel rooms. Moreover, autonomous controls have been documented to deliver huge savings in sparsely used spaces such as stairwells and corridors.
The data logger loaner program will allow lighting designers and specifiers to document the potential savings up front when presenting an end customer with options on a lighting project. "Identifying areas of lighting control opportunity beyond code requirements will not only save energy but further reduce energy bills , "said Brian Donlon, sales vice-president for North America at Lutron." We're confident the results of this program will surprise and delight building owners and end-users at all levels. "
The data loggers are matchbox-size devices made by Onset Computer. The battery-powered HOBO loggers can be installed in minutes and employed autonomously. Meanwhile, the specification team can download the occupancy or light-level data at any time using a PC and a USB connection.
led high bay light for sale believes that its program will offer project managers, contractors, lighting designers, and other specifiers with a competitive advantage. The data loggers will deliver facts that justify the addition of controls to a project.
Specifiers that are interested in the loaner program must establish a customer account with Lutron and share the basic details of the project where they want to deploy the loggers. Upon approval, Lutron will supply the number of units deemed necessary for the project and suggests that two to four weeks of data are required for accurate projections.
Lutron will supply data loggers to customers needing to justify lighting control projects
Lutron has documented a number of lighting projects where controls deliver substantial savings beyond what can be achieved by energy-efficient light sources alone. For example, case studies released late last year covered shared commercial work areas and hotel rooms. Moreover, autonomous controls have been documented to deliver huge savings in sparsely used spaces such as stairwells and corridors.
The data logger loaner program will allow lighting designers and specifiers to document the potential savings up front when presenting an end customer with options on a lighting project. "Identifying areas of lighting control opportunity beyond code requirements will not only save energy but further reduce energy bills , "said Brian Donlon, sales vice-president for North America at Lutron." We're confident the results of this program will surprise and delight building owners and end-users at all levels. "
The data loggers are matchbox-size devices made by Onset Computer. The battery-powered HOBO loggers can be installed in minutes and employed autonomously. Meanwhile, the specification team can download the occupancy or light-level data at any time using a PC and a USB connection.
led high bay light for sale believes that its program will offer project managers, contractors, lighting designers, and other specifiers with a competitive advantage. The data loggers will deliver facts that justify the addition of controls to a project.
Specifiers that are interested in the loaner program must establish a customer account with Lutron and share the basic details of the project where they want to deploy the loggers. Upon approval, Lutron will supply the number of units deemed necessary for the project and suggests that two to four weeks of data are required for accurate projections.
2014年9月25日星期四
iWatt Flickerless SSL LED Driver is Optimized for Commercial Lighting
iWatt Inc., a provider of digital-centric power management integrated circuits (ICs), debuted a digital AC / DC led high bay light price platform designed to address cost, performance and operating life in commercial and wireless solid state lighting (SSL) systems. The first device in this new platform, the iW3630 is a two-stage, Flickerless LED driver with output power up to 45W and is believed to be the first SSL LED driver with a built-in 0V to 10V dimming interface for commercial lighting ballasts. It also supports a PWM digital dimming interface for wireless SSL applications.
The highly integrated design of the iW3630 enables a 30% to 40% savings in bill of materials (BOM) cost compared to competitive solutions in 0V to 10V applications and, unlike alternative solutions, it maintains an extremely high power factor (PF) even at loads down to 20% of full load. It also offers a low total harmonic distortion (THD) of <15%, to meet stringent global energy regulations, along with a built-in over-temperature protection (OTP) and derating function to improve the predictability and reliability of system operating life.
The iW3630 achieves a 30% to 40% savings in BOM cost by integrating a number of design features. A built-in isolation transformer driver works directly with 0V to 10V dimming systems, eliminating the need for additional driver circuitry components and costly microcontrollers, while the PWM digital interface simplifies integration into wireless led high bay light for sale systems.
In both commercial and wireless applications, the built-in over-temperature protection and derating function means there is no need for additional components to control heat. Plus, iWatt's patented PrimAccurate ™ primary-side control technology eliminates the need for a secondary-side regulator and optical feedback isolator, while EZ-EMI® technology simplifies EMI filtering to further minimize the external component count. This combination of on-board functions results in a typical BOM of less than 70 components using the iW3630 compared to often more than 100 components needed using conventional SSL LED drivers. It also reduces the overall solution size and improves reliability.
The highly integrated design of the iW3630 enables a 30% to 40% savings in bill of materials (BOM) cost compared to competitive solutions in 0V to 10V applications and, unlike alternative solutions, it maintains an extremely high power factor (PF) even at loads down to 20% of full load. It also offers a low total harmonic distortion (THD) of <15%, to meet stringent global energy regulations, along with a built-in over-temperature protection (OTP) and derating function to improve the predictability and reliability of system operating life.
The iW3630 achieves a 30% to 40% savings in BOM cost by integrating a number of design features. A built-in isolation transformer driver works directly with 0V to 10V dimming systems, eliminating the need for additional driver circuitry components and costly microcontrollers, while the PWM digital interface simplifies integration into wireless led high bay light for sale systems.
In both commercial and wireless applications, the built-in over-temperature protection and derating function means there is no need for additional components to control heat. Plus, iWatt's patented PrimAccurate ™ primary-side control technology eliminates the need for a secondary-side regulator and optical feedback isolator, while EZ-EMI® technology simplifies EMI filtering to further minimize the external component count. This combination of on-board functions results in a typical BOM of less than 70 components using the iW3630 compared to often more than 100 components needed using conventional SSL LED drivers. It also reduces the overall solution size and improves reliability.
Larson Electronics Introduces Low Profile Explosion Proof Fluorescent Light with Four Lamps
Larson Electronics has announced the introduction of a four lamp explosion proof fluorescent light designed to provide high output from a more compact fixture size. Measuring only two feet long and constructed for low profile mounting, the EPL-24-96 Low Profile Explosion Proof led street light with solar panel provides high output and hazardous location compliance in a compact and unobtrusive fixture design.
The EPL-24-96 low profile explosion proof fluorescent light fixture from Larson Electronics provides operators in hazardous locations with a more compact lighting solution that produces high output yet requires less space for installation. Approved for use in areas designated as Class 1 Division 1 and Class 1 Division 2 locations, this 2 foot long, four bulb fluorescent light fixture produces 8,000 lumens of quality light output with a 4100k color temperature.
This explosion proof fluorescent light is approved for paint booth lighting use as well, and with its four standard T5HO lamps providing excellent output and good color rendering qualities, it provides the light quality needed for maintaining the quality of finishes and coating applied within the spray booth . The EPL-24-96 is designed for low profile mounting and measures only four feet long, making it a good choice for operators who want a less obtrusive fixture that still provides high output and even coverage. Low profile fixture designs are particularly popular with paint booth operators due to their ability to be more easily mounted within recesses or sealed off from the room. This fixture also features copper free aluminum construction for light weight and durability, Pyrex lamp tubes, high gloss aluminum reflector assemblies, and screw on end covers that make relamping easier and more secure than with typical "knock off" end covers. Larson Electronics also offers led street light fixture Manufacturer options to allow operators to tailor the fixtures' light output to their particular needs, although operators should check to verify how lamp options may affect paint booth and classification suitability when specifying optional lamp choices.
The ballast in this fluorescent light fixture is sealed and is designed to allow operation with a universal range of voltages including 120V-60hz, 220V-50hz, 240V-60hz, and 277V-60hz. This explosion proof light is also UL 844, 924, UL 1598 Marine Type, and UL 595 Outdoor Marine Type approved, making it well suited to offshore and marine based applications such as oil rig or marina use. The fixture carries a T6 temperature rating and has a maximum case temperature of 90C, is California Title 24 Compliant, and ideal for any industrial or commercial application where even coverage and high output is required and flammable vapors and gases may be encountered.
The EPL-24-96 low profile explosion proof fluorescent light fixture from Larson Electronics provides operators in hazardous locations with a more compact lighting solution that produces high output yet requires less space for installation. Approved for use in areas designated as Class 1 Division 1 and Class 1 Division 2 locations, this 2 foot long, four bulb fluorescent light fixture produces 8,000 lumens of quality light output with a 4100k color temperature.
This explosion proof fluorescent light is approved for paint booth lighting use as well, and with its four standard T5HO lamps providing excellent output and good color rendering qualities, it provides the light quality needed for maintaining the quality of finishes and coating applied within the spray booth . The EPL-24-96 is designed for low profile mounting and measures only four feet long, making it a good choice for operators who want a less obtrusive fixture that still provides high output and even coverage. Low profile fixture designs are particularly popular with paint booth operators due to their ability to be more easily mounted within recesses or sealed off from the room. This fixture also features copper free aluminum construction for light weight and durability, Pyrex lamp tubes, high gloss aluminum reflector assemblies, and screw on end covers that make relamping easier and more secure than with typical "knock off" end covers. Larson Electronics also offers led street light fixture Manufacturer options to allow operators to tailor the fixtures' light output to their particular needs, although operators should check to verify how lamp options may affect paint booth and classification suitability when specifying optional lamp choices.
The ballast in this fluorescent light fixture is sealed and is designed to allow operation with a universal range of voltages including 120V-60hz, 220V-50hz, 240V-60hz, and 277V-60hz. This explosion proof light is also UL 844, 924, UL 1598 Marine Type, and UL 595 Outdoor Marine Type approved, making it well suited to offshore and marine based applications such as oil rig or marina use. The fixture carries a T6 temperature rating and has a maximum case temperature of 90C, is California Title 24 Compliant, and ideal for any industrial or commercial application where even coverage and high output is required and flammable vapors and gases may be encountered.
Bivar and Marl International Poised to Address Growing Momentum of LEDs
As the market for LED indication and LED lighting products continues to grow at a staggering rate, Bivar and Marl International have seized the opportunity to form a global strategic alliance. The newly formed alliance brings new opportunities for Bivar and Marl to expand their presence and make products and solutions readily available to their worldwide network of distributors. In addition, the relationship makes possible the ability to create new technology together to better service niche markets.
With a long standing history and solid reputation in the LED panel lighting wholesale industry, Bivar brings 45 years of LED innovation to the partnership. Marl, whose longevity in the industry is a close match to Bivar's at more than 40 years of experience, shares an uncanny likeness to Bivar when it comes to customer commitment, technology innovation and a passionate workforce.
The synergy and likeness between the two companies is too strong to ignore. And, each company has a set of core strengths that will be leveraged for the benefit of its customers. For example, Bivar brings to the table a strong network of global distributors and a mature volume manufacturing model, while Marl has excellent local prototyping, local support and strong project management. Both companies share a reputation for high quality products but each tackles LED lighting for different market segments. The end result is a unified presence that brings the best of both worlds together.
According to Marl's recent announcement dated January 28, 2013, the CEOs of the two companies spent two years looking at how they can "most effectively combine their strengths to the benefit of both sets of existing and potential customers. Both companies fully recognize the importance of becoming a global player, and the agreement is the first phase of an exciting joint strategic plan. "
"We put a great deal of emphasis on the benefits to our customers and partners when formalizing this partnership," said Michael Finn, Bivar vice president of sales and marketing. "We share core principles and values and a common vision for where we see the LED market headed. The possibilities for our technology are endless and now we have more opportunity than ever to address a global marketplace together. "
However, the collaboration goes beyond increased field presence. In fact, the Bivar and Marl partnership includes talent and resource sharing. The two companies have a multi-level team engagement that includes sharing of key engineering, design and procurement executive level staff. The goal for this cross-discipline training is to ensure that each company can immerse themselves in the others technology, products and solutions to better service their growing customer base.
"This is not your standard technology partnership," added Finn. "We are very selective about the company that we keep and this alliance is a first of its kind for Bivar. The 'Old World' of led street light wholesale design and manufacturing is getting smaller. We have a vision for global collaboration and we see a future where cross-continent teamwork and design is the norm. "
From a products standpoint, Bivar and Marl now have an expanded offering that includes their own products as well as products and solutions from the other company. Moving forward, the two will jointly develop and market new products and solutions and have already set in place a research and development strategy that addresses the needs of the worldwide customer base.
"We're both respected, long-term pioneers in the LED industry," said Paul McDermott-Roe, Marl sales director. "On our own, we certainly would have continued to provide high-quality, innovative LED solutions for our customers in the UK and North America. However, together we're stronger, better able to stage product around the world and our customers will reap the benefit. "
With a long standing history and solid reputation in the LED panel lighting wholesale industry, Bivar brings 45 years of LED innovation to the partnership. Marl, whose longevity in the industry is a close match to Bivar's at more than 40 years of experience, shares an uncanny likeness to Bivar when it comes to customer commitment, technology innovation and a passionate workforce.
The synergy and likeness between the two companies is too strong to ignore. And, each company has a set of core strengths that will be leveraged for the benefit of its customers. For example, Bivar brings to the table a strong network of global distributors and a mature volume manufacturing model, while Marl has excellent local prototyping, local support and strong project management. Both companies share a reputation for high quality products but each tackles LED lighting for different market segments. The end result is a unified presence that brings the best of both worlds together.
According to Marl's recent announcement dated January 28, 2013, the CEOs of the two companies spent two years looking at how they can "most effectively combine their strengths to the benefit of both sets of existing and potential customers. Both companies fully recognize the importance of becoming a global player, and the agreement is the first phase of an exciting joint strategic plan. "
"We put a great deal of emphasis on the benefits to our customers and partners when formalizing this partnership," said Michael Finn, Bivar vice president of sales and marketing. "We share core principles and values and a common vision for where we see the LED market headed. The possibilities for our technology are endless and now we have more opportunity than ever to address a global marketplace together. "
However, the collaboration goes beyond increased field presence. In fact, the Bivar and Marl partnership includes talent and resource sharing. The two companies have a multi-level team engagement that includes sharing of key engineering, design and procurement executive level staff. The goal for this cross-discipline training is to ensure that each company can immerse themselves in the others technology, products and solutions to better service their growing customer base.
"This is not your standard technology partnership," added Finn. "We are very selective about the company that we keep and this alliance is a first of its kind for Bivar. The 'Old World' of led street light wholesale design and manufacturing is getting smaller. We have a vision for global collaboration and we see a future where cross-continent teamwork and design is the norm. "
From a products standpoint, Bivar and Marl now have an expanded offering that includes their own products as well as products and solutions from the other company. Moving forward, the two will jointly develop and market new products and solutions and have already set in place a research and development strategy that addresses the needs of the worldwide customer base.
"We're both respected, long-term pioneers in the LED industry," said Paul McDermott-Roe, Marl sales director. "On our own, we certainly would have continued to provide high-quality, innovative LED solutions for our customers in the UK and North America. However, together we're stronger, better able to stage product around the world and our customers will reap the benefit. "
LISIDA LEDs to Light Up the Louvre Museum
Toshiba Corporation will help to light up one of the world's most popular museums under a partnership agreement with the Louvre Museum in its lighting renovation project. Under the agreement, Toshiba will support lighting renovations in some of the museums most visited public spaces with provision of its state-of-the art led street light wholesale and renovation costs.
As one of the world's most popular museums, the Louvre is aware of the need to replace energy consuming xenon lighting with an environmentally friendly solution. Toshiba is able to deliver this with its energy saving low-CO2 LED lighting, and will use its industry- leading products to illuminate some of the Louvre's most familiar spaces: Under its partnership agreement, Toshiba will provide the LED lighting for the Pyramids that greets visitors as they approach the museum, the Napoleon Court, and the Cour carree, the main entrance to the museum . Renovation and installation of the Napoleon Court and the Pyramid will be completed within 2011, and the Cour carree is expected to be renovated within 2012.
Alongside environmental concerns, the Louvre must assure lighting that conveys the intrinsic beauty of the museum and its spirit as the home to some of the world's greatest art. Toshiba also understands this, and has the technology for the task. The company recognizes that lighting is much more than a means to brighten public spaces, and that LED lighting can do much more than contribute to saving energy. Light has an emotional power that creates atmosphere and enriches life. Toshiba celebrates this quality as akari, a Japanese concept that conveys the ability of lighting to appeal deeply to our senses and emotions. It will seek to convey this understanding at the Louvre.
Toshiba is taking its new lighting system business to a global level, with initial promotions in such regions as France, Germany, and the UK. Toshiba led street lighting fixture have been available at retailers in France since this January. By further promoting its business, Toshiba aims 350 billion sales in FY2015.
As one of the world's foremost eco-companies, Toshiba Group takes a proactive approach to creating value and promoting lifestyles in harmony with the Earth. In line with this principle, the company ceased production of general incandescent bulbs this March. Toshiba will further promote environmentally conscious management by working to mitigate global warming and make efficient use of resources.
As one of the world's most popular museums, the Louvre is aware of the need to replace energy consuming xenon lighting with an environmentally friendly solution. Toshiba is able to deliver this with its energy saving low-CO2 LED lighting, and will use its industry- leading products to illuminate some of the Louvre's most familiar spaces: Under its partnership agreement, Toshiba will provide the LED lighting for the Pyramids that greets visitors as they approach the museum, the Napoleon Court, and the Cour carree, the main entrance to the museum . Renovation and installation of the Napoleon Court and the Pyramid will be completed within 2011, and the Cour carree is expected to be renovated within 2012.
Alongside environmental concerns, the Louvre must assure lighting that conveys the intrinsic beauty of the museum and its spirit as the home to some of the world's greatest art. Toshiba also understands this, and has the technology for the task. The company recognizes that lighting is much more than a means to brighten public spaces, and that LED lighting can do much more than contribute to saving energy. Light has an emotional power that creates atmosphere and enriches life. Toshiba celebrates this quality as akari, a Japanese concept that conveys the ability of lighting to appeal deeply to our senses and emotions. It will seek to convey this understanding at the Louvre.
Toshiba is taking its new lighting system business to a global level, with initial promotions in such regions as France, Germany, and the UK. Toshiba led street lighting fixture have been available at retailers in France since this January. By further promoting its business, Toshiba aims 350 billion sales in FY2015.
As one of the world's foremost eco-companies, Toshiba Group takes a proactive approach to creating value and promoting lifestyles in harmony with the Earth. In line with this principle, the company ceased production of general incandescent bulbs this March. Toshiba will further promote environmentally conscious management by working to mitigate global warming and make efficient use of resources.
Greater savings with LED
Genesis LED Solutions (GLS), an industry leader in green lighting technology is establishing strategic service provider relationships that impact the customer's bottom line. Energy-saving incentives coupled with led street light with solar panel systems give more bang for the green initiative buck!
Incentive programs that promote energy efficiency would give businesses just what they need to cross over the bridge. Rebates and energy incentives help make green technology improvements accessible to clients looking to upgrade lighting systems and save on lighting expense meeting both environmental stewardship and economic goals.
LED lighting systems are more energy-efficient than traditional florescent lighting systems and as many clients have discovered, LEDs are also a more cost-effective lighting option. Walter Simpson, Plant Manager at Advent Cleaning Technology says, "More than 50% energy cost savings and low maintenance costs associated with GLS products make them attractive for any company willing to adopt energy efficient green lighting technology products. GLS also connected us with our electricity provider to procure rebates on LED lighting upgrade ".
Many utility companies offer led high bay light price incentives or sizeable rebates to businesses that upgrade existing energy-consuming luminaires with LED luminaires or LED retrofit kits. The boost from green lighting incentives accelerate the customer's ROI while reducing their energy consumption and operating expenses. In addition, customers have the benefit of longer lighting lifetime while virtually eliminating maintenance cost.
Veeco Instruments Inc. announced that during the recently completed second quarter, Shanghai Epilight Technology Company Ltd., one of the largest LED manufacturers in China, placed a multi-tool order for Veeco TurboDisc (R) K465i (TM) Metal Organic Chemical Vapor Deposition (MOCVD) systems. The equipment is for Epilight's planned capacity expansion at their Shanghai high-brightness light emitting diode (HB-LED) fab. Mr. Wendi Liu, President of Epilight commented, "We selected Veeco's K465i MOCVD system because of its excellent system design and the good performance in the field. It is simply the best choice for high-volume production of LEDs. Given the increased demand for LEDs in such applications as general illumination, TV backlight and outdoor displays, we intend to ramp our production quickly . With a business partner like Veeco, we are confident we can meet the market demand. "
Incentive programs that promote energy efficiency would give businesses just what they need to cross over the bridge. Rebates and energy incentives help make green technology improvements accessible to clients looking to upgrade lighting systems and save on lighting expense meeting both environmental stewardship and economic goals.
LED lighting systems are more energy-efficient than traditional florescent lighting systems and as many clients have discovered, LEDs are also a more cost-effective lighting option. Walter Simpson, Plant Manager at Advent Cleaning Technology says, "More than 50% energy cost savings and low maintenance costs associated with GLS products make them attractive for any company willing to adopt energy efficient green lighting technology products. GLS also connected us with our electricity provider to procure rebates on LED lighting upgrade ".
Many utility companies offer led high bay light price incentives or sizeable rebates to businesses that upgrade existing energy-consuming luminaires with LED luminaires or LED retrofit kits. The boost from green lighting incentives accelerate the customer's ROI while reducing their energy consumption and operating expenses. In addition, customers have the benefit of longer lighting lifetime while virtually eliminating maintenance cost.
Veeco Instruments Inc. announced that during the recently completed second quarter, Shanghai Epilight Technology Company Ltd., one of the largest LED manufacturers in China, placed a multi-tool order for Veeco TurboDisc (R) K465i (TM) Metal Organic Chemical Vapor Deposition (MOCVD) systems. The equipment is for Epilight's planned capacity expansion at their Shanghai high-brightness light emitting diode (HB-LED) fab. Mr. Wendi Liu, President of Epilight commented, "We selected Veeco's K465i MOCVD system because of its excellent system design and the good performance in the field. It is simply the best choice for high-volume production of LEDs. Given the increased demand for LEDs in such applications as general illumination, TV backlight and outdoor displays, we intend to ramp our production quickly . With a business partner like Veeco, we are confident we can meet the market demand. "
Havertys Furniture Saves $2.2 Million while Spotlighting Home Decor with GE's LED Retail Lamps
When Havertys Furniture (Atlanta, Ga.) Evaluated its lighting portfolio across all 122 of its retail locations, the Southeast-region retailer wanted a solution that would benefit more than just its bottom line. The technology, performance and aesthetics of GE's 14-watt Energy Smart (TM) led street lights price inspired Havertys to use GE products to retrofit existing stores and for new construction moving forward. The switch will translate to an average $ 22,300 lighting cost savings per store per year (based on a $ .10 kWh rate and 4,000 hours of operation) or $ 2.2 million company-wide, but the move means more than dollars to Havertys -. it is also part of a larger environmental initiative "Our goal was to save money and be good stewards by reducing our energy footprint , "said Glenn Boone, director of construction and design for Havertys." The GE lamps were an important ingredient in our cost-saving equation. "With the implementation of new GE indoor LED lighting as an element of its integrated energy management systems, Havertys 'Fairfax, Va, store is showing a 65 percent reduction for June 2012 compared to June 2011 -.. attributable to a combination of new GE LED lighting and high efficiency HVAC systems Meanwhile, among stores retrofit with LED lighting only, Havertys reports an average 25-35 percent energy reduction -. its Austin, Texas location alone seeing a more than 40 percent decrease To date, Havertys has purchased 10,000 LED Retail PAR38 lamps, with an additional 5,500 scheduled for delivery All of its locations are expected to. be completed by 2015. The average Havertys store houses 734 lighting fixtures traditionally fit with 90-watt halogen lamps, each costing $ 36 to operate annually. By comparison, each GE ecomaginationa 14-watt LED lamp will cost only $ 5.60 to power for a year. This amounts to a $ 22,300 savings per store per year, or eventual $ 2.2 million cost benefit when all installations are complete. In addition to indoor LED lighting, Havertys is implementing more efficient HVAC and utility control measures across many of its stores to drive costs down further while shrinking its energy footprint. To date, the company reports an overall 21 percent reduction in electricity usage and is working toward even greater reductions over the next year. "The goal of HVTerra, Havertys' environmental stewardship program, is to achieve a 25 percent reduction across our portfolio versus our 2008 baseline by the end of 2013. Currently, we anticipate reaching this goal by the end of 2012, one year early, "added Boone." We feel very strongly that going forward with our current level of investment in LED lighting, HVAC upgrades and EMS systems, it's possible to achieve a 45-65 percent reduction overall. Havertys has always explored new and creative ways to lessen its environmental impact, including in 2012 when the company invested $ 180,000 in equipment that recycles approximately 4,000 tons of corrugated cardboard and approximately 800 tons of plastic and Styrofoam (TM) each year, according to Havertys' real estate asset manager, Jeffrey Etherton. Besides energy savings, the design and technology of GE's PAR38 lamp was a major selling point for Havertys. It was important that the led street light wholesale would not be visible on the lamps, and so the LED mounting location and Visual Comfort Lens of GE's retail lighting product was, in their words, "a game-changer."
LISIDA SYLVANIA Helps Retailers Develop Custom Designed LED Solutions
Lighting can play a crucial role in winning over savvy consumers beyond just illuminating product for sale. It can create an inviting environment to draw people into and throughout the store, showcase the vibrant colors in a blouse to create purchasing desire, focus attention on an important profit-driving item for sale and serve as a creative wayfinding technique that enhances the shopper's experience. Recognizing the impact lighting can have on forward thinking retailers, North American lighting leader OSRAM SYLVANIA unveiled today the U DESIGN Lighting Experience Center at its Winchester, Kentucky manufacturing plant, where retail lighting designers can customize an led high bay lighting wholesale solution that meets their unique design requirements and helps increase sales and profits.
At the U DESIGN Center, retailers can vary beam spread, color temperature, color rendering, optics and drivers and review the ROI for their specific application, comparing LED versus traditional lighting technologies. Depending on their specific requirements, building blocks of components are selected to create a unique lamp for their ambient or accent lighting needs. After selection of components, OSRAM SYLVANIA will build the specified product at the Winchester plant and ship directly to the retailer for evaluation in their installation. Retail lighting designers can also see how the led high bay light price are assembled and quality tested to ensure reliable performance at the Winchester plant, which has been in operation since 1953 and has a current staff with over 363 years of combined engineering experience.
While LED lighting has been used for years as power indicator lights in consumer electronics, for bike lights, in cars, in traffic lights and for outdoor lighting, recent technological advances mean LED light bulbs are entering our homes as a replacement for incandescent and fluorescent light bulbs. Why is LED lighting growing in popularity? What are the benefits of LED light bulbs? And what's actually inside an LED bulb? We have taken a look at this potentially exciting technology to give you the answers to these kind of questions. and more .
At the U DESIGN Center, retailers can vary beam spread, color temperature, color rendering, optics and drivers and review the ROI for their specific application, comparing LED versus traditional lighting technologies. Depending on their specific requirements, building blocks of components are selected to create a unique lamp for their ambient or accent lighting needs. After selection of components, OSRAM SYLVANIA will build the specified product at the Winchester plant and ship directly to the retailer for evaluation in their installation. Retail lighting designers can also see how the led high bay light price are assembled and quality tested to ensure reliable performance at the Winchester plant, which has been in operation since 1953 and has a current staff with over 363 years of combined engineering experience.
While LED lighting has been used for years as power indicator lights in consumer electronics, for bike lights, in cars, in traffic lights and for outdoor lighting, recent technological advances mean LED light bulbs are entering our homes as a replacement for incandescent and fluorescent light bulbs. Why is LED lighting growing in popularity? What are the benefits of LED light bulbs? And what's actually inside an LED bulb? We have taken a look at this potentially exciting technology to give you the answers to these kind of questions. and more .
100W LED High Bay Light from lisida Lighting
The Chinese leading LED light manufacturer - Zhongtian Lighting released an energy efficient lamp for large area lighting - 100W led high bay light manufacturers which provides high brightness and superior light quality This light source is ideal for high bay lighting and low bay lighting -. In fact, it's a perfect choice for any site that wants reduced electricity bills, and happier customers and staff. Classic, clean and simple styling helps this lighting fixture contribute pleasingly to almost any design scheme.
Zhongtian Lighting has made the [ZT-HB-1-100W] led bay light fully compliant with all relevant environmental certifications, in order to protect the environment and customers. The product does not contain hazardous chemicals, such as mercury. Unlike competing products, it does not emit harmful UV or IR radiation, making it far more eco-friendly than traditional lighting fixtures and other lighting technologies. The light source of 100W led high bay light for sale
is Bridgelux high brightness LEDs. The100W high bay is composed of many LED emitters and its appearance is similar to traditional high bay lighting, but it has higher efficacy. The 100W high bay can deliver 13500lm. Besides, the 100W high bay light has the advantages of energy efficiency, long life time and easy installation which can replace mercury vapor lamp or HPS (high pressure sodium). Meanwhile, it can help customers to save the maintenance costs and the power consumption.
Zhongtian Lighting has made the [ZT-HB-1-100W] led bay light fully compliant with all relevant environmental certifications, in order to protect the environment and customers. The product does not contain hazardous chemicals, such as mercury. Unlike competing products, it does not emit harmful UV or IR radiation, making it far more eco-friendly than traditional lighting fixtures and other lighting technologies. The light source of 100W led high bay light for sale
is Bridgelux high brightness LEDs. The100W high bay is composed of many LED emitters and its appearance is similar to traditional high bay lighting, but it has higher efficacy. The 100W high bay can deliver 13500lm. Besides, the 100W high bay light has the advantages of energy efficiency, long life time and easy installation which can replace mercury vapor lamp or HPS (high pressure sodium). Meanwhile, it can help customers to save the maintenance costs and the power consumption.
Mentor Graphics Advances Their Industry-Unique LED Solution to Meet Future Auto-Lighting Needs
Mentor Graphics Corporation announced significant advances in their T3Ster + TeraLED measurement and characterization hardware, as well as in FloEFD software simulation products, to meet the needs of lighting developers using arrays of LEDs in headlights, taillights and other transportation industry applications. These advances enable developers to efficiently manage the heat and condensation developed by these arrays thus improving product reliability and life. In addition, with T3Ster and buy led high bay lamps hardware's ability to measure both thermal and optical characteristics of single LEDs and full arrays, proper light quality and color can be achieved.
Mentor is the only industry supplier to provide a complete physical measurement, characterization and thermal simulation solution of LEDs and LED SSL arrays.
Now the FloEFD product has been extended with a dedicated LED module which enables thermal simulation of the most advanced LED products along with the capability of predicting their "hot lumens" ie their total emitted luminous flux at their operating temperatures. This capability is provided through an LED model library whose elements are characterized directly from physical tests by the Mentor® T3Ster + TeraLED combined thermal and radiometric / photometric LED testing solution. In addition, the FloEFD LED models support radiation absorption in semi-transparent solids, such as the head or taillight lens.
"LEDs shipped to use in headlamps are forecast to grow significantly from 10 million units in 2012 to 78 million units in 2018," stated Jamie Fox, lighting and LEDs research manager for IMS Research (now part of IHS). "The quality, lifetime and reliability requirements in the automotive sector are very high, higher than most other LED sectors. "
"The use of led street light with solar panel in the transportation industry is expanding rapidly, led by Europe but now also prevalent in the US and Asia," stated Erich Buergel, general manager of the Mentor Graphics Mechanical Analysis Division. "We have serviced this industry for several years now but larger, hotter and more complex shaped arrays are driving us to enhance our FloEFD, T3Ster, and TeraLED products to stay ahead of our users' needs. These enhancements will ensure that the industry is able to advance while maintaining high product reliability and achieving faster times to market. "
LED arrays are becoming larger and to accommodate these larger arrays, Mentor is now providing a 50 cm diameter sphere, in addition to their 30 cm, on their TeraLED product to measure optical performance. A 50 cm sphere is large enough to hold LEDs used in headlights and taillights producing up to 7500 lumens, with cooling for up to 50W of heat dissipation. This combination assures that the industry will be able to develop their most aggressive LED array designs and meet the needs of the automotive industry.
Mentor is the only industry supplier to provide a complete physical measurement, characterization and thermal simulation solution of LEDs and LED SSL arrays.
Now the FloEFD product has been extended with a dedicated LED module which enables thermal simulation of the most advanced LED products along with the capability of predicting their "hot lumens" ie their total emitted luminous flux at their operating temperatures. This capability is provided through an LED model library whose elements are characterized directly from physical tests by the Mentor® T3Ster + TeraLED combined thermal and radiometric / photometric LED testing solution. In addition, the FloEFD LED models support radiation absorption in semi-transparent solids, such as the head or taillight lens.
"LEDs shipped to use in headlamps are forecast to grow significantly from 10 million units in 2012 to 78 million units in 2018," stated Jamie Fox, lighting and LEDs research manager for IMS Research (now part of IHS). "The quality, lifetime and reliability requirements in the automotive sector are very high, higher than most other LED sectors. "
"The use of led street light with solar panel in the transportation industry is expanding rapidly, led by Europe but now also prevalent in the US and Asia," stated Erich Buergel, general manager of the Mentor Graphics Mechanical Analysis Division. "We have serviced this industry for several years now but larger, hotter and more complex shaped arrays are driving us to enhance our FloEFD, T3Ster, and TeraLED products to stay ahead of our users' needs. These enhancements will ensure that the industry is able to advance while maintaining high product reliability and achieving faster times to market. "
LED arrays are becoming larger and to accommodate these larger arrays, Mentor is now providing a 50 cm diameter sphere, in addition to their 30 cm, on their TeraLED product to measure optical performance. A 50 cm sphere is large enough to hold LEDs used in headlights and taillights producing up to 7500 lumens, with cooling for up to 50W of heat dissipation. This combination assures that the industry will be able to develop their most aggressive LED array designs and meet the needs of the automotive industry.
LISIDA LEDs Light the Iconic 2013 Times Square Ball
Philips continues to bring innovative LED technology into the lives of millions by lighting the world-famous Times Square New Year's Eve Ball. New Year's 2013 marks the 13th consecutive year Philips has served as the official Lighting Partner to the iconic Times Square Ball. The LED lighting on the Times Square Ball demonstrates the latest in innovative led high bay light for sale
and ushers in a new era of lighting that delivers energy savings, greater light quality, longer bulb life, and dimmability to existing lighting fixtures.
"The Times Square Ball is an icon for the world to see, but more important, it is a real-world example of how innovation can enhance our lives while creating a more sustainable community"
The same innovative technology used in the Ball is commercially available to consumers to use in their home, and continues to become the new standard in lighting. This includes the redesigned Philips LED A-19 bulb, the LED replacement for the traditional 60 watt lamp. The A19 LED bulb reduces energy consumption by 85 percent, lasts 25 times longer, and can save consumers an estimated $ 134 in electricity costs during its lifespan, as compared to the traditional 60-watt incandescent.
According to a recent Philips survey, almost 60% of people agree that light plays an important role in setting the right mood for a special occasion, such as New Year's Eve. In addition, 60 percent of those surveyed report that lighting is important in improving someone's overall mood. Of those surveyed, 30 percent are very familiar with LED lighting solutions. When asked about the benefits of LED technology, 71 percent of respondents cite energy efficiency, and 61 percent agree that LEDs last longer than traditional incandescent bulbs.
However, there is a significant knowledge gap about other important benefits, such as color quality, customizable hues and brightness, and the ability to integrate with existing fixtures. To help raise awareness of how LED lighting can enhance people's lives, Philips is hosting the Make Your New Year Sparkle Twitter Sweepstakes running Dec. 28, 2012 - Jan. 3, 2013. Using "#PhilipsNYECountdown," entrants could win a new lighting entertainment kit for the home by tweeting about how Philips lighting can enhance a New Year's celebration
"The Times Square Ball is an icon for the world to see, but more important, it is a real-world example of how innovation can enhance our lives while creating a more sustainable community," said Ed Crawford, CEO of lamps, lighting electronics and controls, Philips. "Though this is our 'lucky' 13th lighting, at Philips, we know it takes more than luck to deliver meaningful innovation. Through our focused and persistent efforts, we continue to expand our product lines and make it possible for more consumers to use energy-efficient, high-quality, cost-friendly and long-lasting LED lights in their homes. "
Like the 32,256 Philips LUXEON LEDs that light the glittering Times Square Ball, the commercially-available Philips led street light with solar panel consume up to 80 percent less energy than traditional incandescent bulbs, reaping significant savings for consumers who switch to Philips LEDs. For example, if everyone in the US transitioned to energy-efficient lighting in their homes, consumers would eliminate 87.5 million metric tons of carbon dioxide and generate energy savings of $ 15.8 billion.
and ushers in a new era of lighting that delivers energy savings, greater light quality, longer bulb life, and dimmability to existing lighting fixtures.
"The Times Square Ball is an icon for the world to see, but more important, it is a real-world example of how innovation can enhance our lives while creating a more sustainable community"
The same innovative technology used in the Ball is commercially available to consumers to use in their home, and continues to become the new standard in lighting. This includes the redesigned Philips LED A-19 bulb, the LED replacement for the traditional 60 watt lamp. The A19 LED bulb reduces energy consumption by 85 percent, lasts 25 times longer, and can save consumers an estimated $ 134 in electricity costs during its lifespan, as compared to the traditional 60-watt incandescent.
According to a recent Philips survey, almost 60% of people agree that light plays an important role in setting the right mood for a special occasion, such as New Year's Eve. In addition, 60 percent of those surveyed report that lighting is important in improving someone's overall mood. Of those surveyed, 30 percent are very familiar with LED lighting solutions. When asked about the benefits of LED technology, 71 percent of respondents cite energy efficiency, and 61 percent agree that LEDs last longer than traditional incandescent bulbs.
However, there is a significant knowledge gap about other important benefits, such as color quality, customizable hues and brightness, and the ability to integrate with existing fixtures. To help raise awareness of how LED lighting can enhance people's lives, Philips is hosting the Make Your New Year Sparkle Twitter Sweepstakes running Dec. 28, 2012 - Jan. 3, 2013. Using "#PhilipsNYECountdown," entrants could win a new lighting entertainment kit for the home by tweeting about how Philips lighting can enhance a New Year's celebration
"The Times Square Ball is an icon for the world to see, but more important, it is a real-world example of how innovation can enhance our lives while creating a more sustainable community," said Ed Crawford, CEO of lamps, lighting electronics and controls, Philips. "Though this is our 'lucky' 13th lighting, at Philips, we know it takes more than luck to deliver meaningful innovation. Through our focused and persistent efforts, we continue to expand our product lines and make it possible for more consumers to use energy-efficient, high-quality, cost-friendly and long-lasting LED lights in their homes. "
Like the 32,256 Philips LUXEON LEDs that light the glittering Times Square Ball, the commercially-available Philips led street light with solar panel consume up to 80 percent less energy than traditional incandescent bulbs, reaping significant savings for consumers who switch to Philips LEDs. For example, if everyone in the US transitioned to energy-efficient lighting in their homes, consumers would eliminate 87.5 million metric tons of carbon dioxide and generate energy savings of $ 15.8 billion.
2014年9月23日星期二
On Factors Influencing Thermal Resistance of LED Components
The thermal resistance of a material is its resistance against thermal conduction. The unit of thermal resistance is degree per watt, representing the temperature difference across a structure when a unit of heat energy flows through it in a unit time. After the led high bay light supplier is lighted and the thermal conduction stabled, as every watt of power on the chip surface being consumed, the temperature difference between the PN junction and the linking bracket or heating panel is the thermal resistance value of the LED. The thermal resistance value is most often represented as θ or R; the temperatures of the joint face and of the point to which the heat has been conducted as Tj and Tx respectively, and the heating output as P. The higher the thermal resistance value is, the more difficult the heat is being conducted, and thus higher component temperatur. From the thermal resistance value, the heating condition of the component can be decided or estimated. The lower the thermal resistance value is, the faster the chip dissipates heat. Therefore, to lower the temperature of the PN junction in the chip is helpful to lengthen the lifespan of LED.
What are the main factors influencing the thermal resistance value of LED components? And how can its influence be decreased?
1. Thermal resistance of a LED chip is related to its structure and the original material. Therefore, it is crucial to decrease the thermal resistance value of the LED itself.
2. Different thermal conductivities of copper, aluminium, or other heat sink materials can also influence the thermal resistance of LED. So, choosing the appropriate heat sink material helps decrease the thermal resistance of LED components.
3. Even in condition of applying the same heat sink material, the size of the cooling area is also directly related to the LED thermal resistance. The well-designed and large-sized second-time cooling system will decrease the thermal resistance and can be helpful to increase the lighting efficiency and lengthen the life-span of the LED.
4. LED thermal resistance value can be influenced by: whether the LED chip is joined by the thermal conductive glue, connected directly to the metal, and the kind of the glue or metal used The thermal resistance of the joint face between the LED and. the second-time cooling system should be kept as low as possible.
5. The temperature of the operational environment can also affect the thermal resistance of the led street light wholesale. The suggestion is to keep the surrounding temperature as low as possible.
6. Pay attention to some technological details such as adopting right materials and controlling the rated power input. Improve the cooling system of the LED with the precondition of increasing its lighting efficiency and life-span.
What are the main factors influencing the thermal resistance value of LED components? And how can its influence be decreased?
1. Thermal resistance of a LED chip is related to its structure and the original material. Therefore, it is crucial to decrease the thermal resistance value of the LED itself.
2. Different thermal conductivities of copper, aluminium, or other heat sink materials can also influence the thermal resistance of LED. So, choosing the appropriate heat sink material helps decrease the thermal resistance of LED components.
3. Even in condition of applying the same heat sink material, the size of the cooling area is also directly related to the LED thermal resistance. The well-designed and large-sized second-time cooling system will decrease the thermal resistance and can be helpful to increase the lighting efficiency and lengthen the life-span of the LED.
4. LED thermal resistance value can be influenced by: whether the LED chip is joined by the thermal conductive glue, connected directly to the metal, and the kind of the glue or metal used The thermal resistance of the joint face between the LED and. the second-time cooling system should be kept as low as possible.
5. The temperature of the operational environment can also affect the thermal resistance of the led street light wholesale. The suggestion is to keep the surrounding temperature as low as possible.
6. Pay attention to some technological details such as adopting right materials and controlling the rated power input. Improve the cooling system of the LED with the precondition of increasing its lighting efficiency and life-span.
Taking Advantage of SnapDriveTM to Improve the LED Display Screen Quality
Full-color LED video display screen has become popular in recent years for various applications such as indoor / outdoor commercial advertisement, stadium billboards, traffic message signs ... etc. Thanks to the evolution of LED technology which enables lower cost, higher luminance, uniform wave -length and better efficacy LEDs available, the LED display screen makers are able to build high quality display screen with cheaper cost. With the advent of Full-HD video, the need for building higher resolution cree xsp series led street light screen supporting higher grayscale-level and higher refresh rate is continuously driving the LED display makers to upgrade their system specification. The improvement of LED display refresh rate and grayscale-level is associated with several electrical factors, including (1) the channel current output response rate (OE [note1] response rate ) of the LED driver, (2) the speed of system clock (DCLK) used to transmit pixel data from control board to the LED driver in a cascaded daisy chain, (3) the scanning methodology of the LED module board which usually is a trade-off between BOM cost and luminance degradation, (4) the transmission throughput to transmit display pixel data from the video control system to the LED display panels.
Conventional LED drivers with moderate OE response rate and DCLK can usually provides LED display makers just-enough performance to build a medium-class screen, by trading off display quality to gain system stability at reduced BOM cost and cheaper PCB design. Such LED drivers, however, fall short to meet the ever-growing pursuit for higher resolution, refresh rate and grayscale-level. As such, EnE Technology is rolling out a series of LED drivers with SnapDriveTM [note2] technology to address this demand. The SnapDriveTM technology expedites the LED driver's OE response rate and DCLK without having suffered the distortion of output current, while at the same time it also alleviates the heat dissipation of LED and hence prolongs the life-time of LED. By taking advantage of the SnapDriveTM drivers, system makers are now able to push the frontier of their design specification to embrace high quality video such like Full-HD.
[Note 1] OEis an input pin of the led street light wholesale used to enable / disable the output current driving of LEDs
For example, given an outdoor LED display screen constituted by 48 pieces of 16-channel driver IC in a single daisy chain, making the total number of channels in a single daisy-chain to be 48 * 16 = 768 (ie, Cas = 768 ). Assuming the panel is static driven (without scanning) with 2-bit / 4-step of brightness level adjustment.
Conventional LED drivers with moderate OE response rate and DCLK can usually provides LED display makers just-enough performance to build a medium-class screen, by trading off display quality to gain system stability at reduced BOM cost and cheaper PCB design. Such LED drivers, however, fall short to meet the ever-growing pursuit for higher resolution, refresh rate and grayscale-level. As such, EnE Technology is rolling out a series of LED drivers with SnapDriveTM [note2] technology to address this demand. The SnapDriveTM technology expedites the LED driver's OE response rate and DCLK without having suffered the distortion of output current, while at the same time it also alleviates the heat dissipation of LED and hence prolongs the life-time of LED. By taking advantage of the SnapDriveTM drivers, system makers are now able to push the frontier of their design specification to embrace high quality video such like Full-HD.
[Note 1] OEis an input pin of the led street light wholesale used to enable / disable the output current driving of LEDs
For example, given an outdoor LED display screen constituted by 48 pieces of 16-channel driver IC in a single daisy chain, making the total number of channels in a single daisy-chain to be 48 * 16 = 768 (ie, Cas = 768 ). Assuming the panel is static driven (without scanning) with 2-bit / 4-step of brightness level adjustment.
Driving Higher Levels of Efficiency in Lighting through Primary Side Regulation
Global attention continues to focus on the methods for achieving low power consumption and high efficiency. Lighting represents nearly 20% of the worldwide consumption of electrical resources and advancements in lighting can have a tremendous impact. LED solid state lighting (SSL) is environmentally friendly for the global environment. It has a smart form factor, long life, high conversion efficiency, and substantially reduces power consumption up to 80 or 90 percent compared to traditional incandescent lighting. LED panel lighting wholesale play an important role in LED SSLs, as these drivers provide accurate current to maintain a stable brightness. However, the traditional approach of the LED driver used a secondary feedback circuitry for driving LED's voltage and current. This secondary feedback circuit increases the cost and size. This article shows a patented technology "Primary Side Regulation" (PSR). This PSR controller precisely regulates the voltage and current of the LED driver in the primary side of the transformer without the need for secondary feedback circuitry. It includes a frequency hopping technique to reduce EMI and a green mode function to reduce standby power losses . With this approach, a PSR charger can achieve a smaller form factor, lower standby power and higher efficiency compared with conventional designs, such as Ringing Chock Converter (RCC) and traditional PWM.
Because of energy demand imbalance, the cost of energy rising and the environmental concerns, technologies that can conserve power and be green are increasingly important. Power losses in lighting represent can be as much as 20 percent and recouping this wasted energy through innovative techniques can have a strong impact on energy-savings. Energy-efficient regulations are becoming more pervasive. In the US, there is ENERGY STAR®, but Australia, European Union and California have also announced that they will gradually phase out tradition lighting solutions.
Light Emitting Diode (LED) is actually the same as a rectifier diode as it has unilateral conduction. Compared with traditional lighting technologies, LED kind of Solid State Lighting (SSL), transferring the electrical energy to light by the semiconductor. The advantages of LED lighting comparing to traditional lighting technologies are as shown below: (The advantages lists below)
1. Drive by DC voltage and have high-brightness even during low-voltage, low current conditions. This solution can achieve 80% energy savings compare to other lighting sources in the same lighting illumination application. The lifetime of high brightness LEDs can be as much as 60,000 ~ 100,000 hours compared to 1000 hours of an incandescent bulb and the LEDs offer fast reaction speed (100ns ~ 1ns).
2. Good monochromatic, common colors are red, green, yellow and orange. Color can be changed through changing the current, and there are no ultraviolet and infrared in optical spectrum compared with traditional mercury cold cathode fluorescent lamps (CCFL) that contain less harmful mercury metal elements, recyclables and offer better environmental benefits.
3. The LED offers small size, anti-vibration and excellent impact resistance, and offer the added advantage of making them into various shapes in lamps.
Compare with LEDs, spiral energy saving bulbs, and T5 fluorescent lamps, incandescent lamp illumination efficiency was only 12lm / W, life time less than 2000 hours. Spiral energy saving light bulbs illumination efficiency was 60lm / W, with a lifetime of approximately 8000 hours . T5 lamp illumination efficiency was 96lm / W, life time with approximately 10,000 hours. The 5mm white LED illumination efficiency was 20 ~ 28lm / W, with a life time of approximately 100,000 hours. LEDs clearly have a longer lifespan and more attractive features compare with traditional lighting applications. High-Brightness Light Emitting Diode (HBLED) is a high-power, high-brightness LED. With its longer life- time, small size and flexible design, HBLEDs are already being adopted as an alternative to traditional incandescent and . halogen products HBLED applications are commonly used in the following applications:
1. Screen display and traffic lights: Variety of billboards, sports scoreboard and traffic signals.
2. Vehicle lights: dashboard indicator, audio and external LED brake lights, taillights, side light, etc.
3. Backlight: mobile phones, digital cameras and notebook computers backlight.
4. Landscape lighting, architectural lighting, decorative lights, street lighting and residential lighting.
As a new type of LED light source green products, these are bound to be the next trend in the development of the next generation.
A High Brightness LED Driver using a Primary Side Regulation Controller
LED lighting has many advantages as described above but without the correct voltage and precise current, these devices can not only decrease the lifetime but also increase power losses and heat consumption and ultimately, causing irreparable damage to the LED. Consider the physical property of LED like general diode in that it has a sharp VI curve. The LED operating voltage is quite sensitive to operating current and impact HB-LED unit lifetime in case of changing widely. Therefore, LED current is very important to lighting illumination. For this reason, the PSR with outstanding constant current technology is important and instrumental for the longevity of the HB-LED unit. Non-isolated Buck converters or isolate Flyback converters are commonly used in LED drivers.
An offline constant output current LED driver can be implemented using an isolated flyback converter with secondary circuit to achieved output current regulation as shown in Figure 1 for conventional led street light fixture Manufacturer control circuit. The LED current is measured through a current-sense resistor Ro from the secondary side and provides the necessary feedback information through an optocoupler. The optocoupler forms isolation for primary and secondary side and couples the feedback signal to the PWM controller at the primary side. To achieve better output regulation, the PWM controller receives the feedback single from secondary site through the optocoupler to decide the MOSFET duty cycle. This approach provides precise current control but the drawback is higher device count is needed, which means more board space is required, higher cost and lower reliability. Meanwhile, the current-sense resistor RO will also increase the power losses and decrease the efficiency of the power supply for constant current regulation. Recently, efficiency and power saving requirements are becoming more and more important for LED drivers. Smaller size is also needed for LED applications. Hence, the conventional circuit will no longer meet this requirement. This article provides a method using primary side control that can reduce device counts and provide better efficiency.
Because of energy demand imbalance, the cost of energy rising and the environmental concerns, technologies that can conserve power and be green are increasingly important. Power losses in lighting represent can be as much as 20 percent and recouping this wasted energy through innovative techniques can have a strong impact on energy-savings. Energy-efficient regulations are becoming more pervasive. In the US, there is ENERGY STAR®, but Australia, European Union and California have also announced that they will gradually phase out tradition lighting solutions.
Light Emitting Diode (LED) is actually the same as a rectifier diode as it has unilateral conduction. Compared with traditional lighting technologies, LED kind of Solid State Lighting (SSL), transferring the electrical energy to light by the semiconductor. The advantages of LED lighting comparing to traditional lighting technologies are as shown below: (The advantages lists below)
1. Drive by DC voltage and have high-brightness even during low-voltage, low current conditions. This solution can achieve 80% energy savings compare to other lighting sources in the same lighting illumination application. The lifetime of high brightness LEDs can be as much as 60,000 ~ 100,000 hours compared to 1000 hours of an incandescent bulb and the LEDs offer fast reaction speed (100ns ~ 1ns).
2. Good monochromatic, common colors are red, green, yellow and orange. Color can be changed through changing the current, and there are no ultraviolet and infrared in optical spectrum compared with traditional mercury cold cathode fluorescent lamps (CCFL) that contain less harmful mercury metal elements, recyclables and offer better environmental benefits.
3. The LED offers small size, anti-vibration and excellent impact resistance, and offer the added advantage of making them into various shapes in lamps.
Compare with LEDs, spiral energy saving bulbs, and T5 fluorescent lamps, incandescent lamp illumination efficiency was only 12lm / W, life time less than 2000 hours. Spiral energy saving light bulbs illumination efficiency was 60lm / W, with a lifetime of approximately 8000 hours . T5 lamp illumination efficiency was 96lm / W, life time with approximately 10,000 hours. The 5mm white LED illumination efficiency was 20 ~ 28lm / W, with a life time of approximately 100,000 hours. LEDs clearly have a longer lifespan and more attractive features compare with traditional lighting applications. High-Brightness Light Emitting Diode (HBLED) is a high-power, high-brightness LED. With its longer life- time, small size and flexible design, HBLEDs are already being adopted as an alternative to traditional incandescent and . halogen products HBLED applications are commonly used in the following applications:
1. Screen display and traffic lights: Variety of billboards, sports scoreboard and traffic signals.
2. Vehicle lights: dashboard indicator, audio and external LED brake lights, taillights, side light, etc.
3. Backlight: mobile phones, digital cameras and notebook computers backlight.
4. Landscape lighting, architectural lighting, decorative lights, street lighting and residential lighting.
As a new type of LED light source green products, these are bound to be the next trend in the development of the next generation.
A High Brightness LED Driver using a Primary Side Regulation Controller
LED lighting has many advantages as described above but without the correct voltage and precise current, these devices can not only decrease the lifetime but also increase power losses and heat consumption and ultimately, causing irreparable damage to the LED. Consider the physical property of LED like general diode in that it has a sharp VI curve. The LED operating voltage is quite sensitive to operating current and impact HB-LED unit lifetime in case of changing widely. Therefore, LED current is very important to lighting illumination. For this reason, the PSR with outstanding constant current technology is important and instrumental for the longevity of the HB-LED unit. Non-isolated Buck converters or isolate Flyback converters are commonly used in LED drivers.
An offline constant output current LED driver can be implemented using an isolated flyback converter with secondary circuit to achieved output current regulation as shown in Figure 1 for conventional led street light fixture Manufacturer control circuit. The LED current is measured through a current-sense resistor Ro from the secondary side and provides the necessary feedback information through an optocoupler. The optocoupler forms isolation for primary and secondary side and couples the feedback signal to the PWM controller at the primary side. To achieve better output regulation, the PWM controller receives the feedback single from secondary site through the optocoupler to decide the MOSFET duty cycle. This approach provides precise current control but the drawback is higher device count is needed, which means more board space is required, higher cost and lower reliability. Meanwhile, the current-sense resistor RO will also increase the power losses and decrease the efficiency of the power supply for constant current regulation. Recently, efficiency and power saving requirements are becoming more and more important for LED drivers. Smaller size is also needed for LED applications. Hence, the conventional circuit will no longer meet this requirement. This article provides a method using primary side control that can reduce device counts and provide better efficiency.
General Applications of Outdoor LED Lightings
By utilizing LED light bulbs, you are not only going green. There are actually a lot more benefits concerning this conversion. Two of the main reasons help people to decide going green are tax break and helping the environment. LED lights will not only be helping our environment but in the long run, it is going to be able to save us a lot of cash on the electric bill because they consumes a lot less electricity.
LEDinside observed led street light with solar panel in finding their parts in every aspect of residential home, that been said is to include outside spaces with additional outdoor lightings. LED lights are a type of energy efficient device made to accommodate each and every spot inside and outside of your house , with the objective to deduce the energy wasted in typical traditional lighting and take part in saving the planet. House owners who experience the rewards of LED lights could now be in a quest in converting their outdoor lighting fixtures to LED light bulbs.
Outdoor lightings are types of bulbs equipped capability to work in all possible outside locations, for example like at your terrace and balcony. What is more impressive about these lights' versatility is that they can be used in conditions such as to light up steps leading to your door. LED illuminations have already found its popular application in outdoor lighting, especially when applied in place like swimming pools that particularly need additional lights throughout the night. If you can visualize a use for LED lighting outdoor, you will find actually there are already existing LED products for that purpose.
LED Lighting for garden and outdoor use has become popular because of LEDs' affordable and efficient characteristics. LED lights are consisting of clusters of tiny LEDs to produce a bright glow and they have been proven to be highly efficient. A typical LED light can last to more than 50,000 hours and because of this reason, they are an ideal lighting source. Old traditional outdoor lighting typically use high wattage light bulbs in order to produce enough light to light desired areas. Therefore, if lights stay on all nights, lighting electricity cost can accumulate to an astonishing amount on your monthly bill.
Despite the fact that LED lights are the environment friendly choice, many people prefer LED lights for reason of the amount of energy consume, their cost effectiveness and electricity saving characteristics. LEDs provide pure light and generate relatively small amount of heat. Durability is also a factor that makes LED lights a wise choice because they can easily endure harsh environments.
Different from the traditional incandescent light bulbs we are accustomed to, LED lights are long lasting. Also, LED lights are made from solid state components so they do not break as easily as glass incandescent light bulbs. This fact makes them very resilient to external shock and much more durable than fragile incandescent light bulbs. Moreover, LED lights come in various different sizes, shapes and colors, more than what we can expect from the traditional light sources.
LED lightings are capable of emitting intended light colors without using light filters that were require by traditional lighting methods. LED lights can be easily dimmed by either lowering their forward current or by manipulate their pulse-width modulation.
LED lights use approximately 95 percent less energy than the old traditional glass incandescent light bulbs Reasons being that LED bulbs last for years, in addition to the energy saved, there are also less maintenance and replacement relative costs. Costing saving can be a major benefit of using LED lights; most LED light bulbs consume only two to ten watts of electricity to operate.
The longevity of an incandescent light bulb when compare to that of a LED bulb is shocking, a LED bulb while being energy-efficient can last up to approximately 60,000 hours while the of an incandescent light bulb only last about 1,000 hours. A LED light bulb last 10 times long than Compact Florescent light bulb and even longer when compare to that of an incandescent light bulb.
Outdoor LED lights are typically use for security, safety, utility and atmosphere purpose. Security lights are mainly motion activated and are mounted to walls outside along a driveway or around a doorway. Safety and utility lights are lights that make you felt safe, by effectively light up pathways, patios and decks.
These outdoor lights can be use effectively to produce pleasing atmosphere. For example ground level LED lights can be used to light up gardens and flower beds, accentuate features of a garden and bringing plants to life. LED spotlights, on the other hand, draw attention to trees or flowers by creating silhouettes behind the desired objects. Uplights are a choice used to create dramatic lighting at the base of walls and other places while Downlights eliminate larger, wide areas including walkways and to increase security. LED rope lights and strings of tiny LED light bulbs can be strung along a fence, on garden borders, branches and around trees.
During big events like Christmas, lighting costs are known to be extremely high. By utilizing LED illuminations in replacement, house owner can cut back on their electricity consumptions. Furthermore these decorative LED lights are the same price as the order traditional decorative lights, leave you no reason to not acquire these energy saving and environmental friendly products. It is a fact that LED illuminations have been use is large size Christmas interior décor due to the great intensity of the light bulb.
The great thing about these LED light bulbs is their dazzling brightness; the light they generate can create a major visibility then traditional Christmas light can not compare These new LED decorative lights can last up to about 30 year and come in different size and shape, guarantee. that most customers can find the light that suit their expected decorative style.
LEDinside believes that because led street light wholesale are small in size and yet produce decorative lighting that to other external illumination can compete without wasting a large amount of electricity. By considering the fact that LEDs have been prevalently use in lighting up pathways and streets, they are made with safety as a primary concern. These exterior LED lights are accepted as the least hazardous lighting products on the market.
LEDinside observed led street light with solar panel in finding their parts in every aspect of residential home, that been said is to include outside spaces with additional outdoor lightings. LED lights are a type of energy efficient device made to accommodate each and every spot inside and outside of your house , with the objective to deduce the energy wasted in typical traditional lighting and take part in saving the planet. House owners who experience the rewards of LED lights could now be in a quest in converting their outdoor lighting fixtures to LED light bulbs.
Outdoor lightings are types of bulbs equipped capability to work in all possible outside locations, for example like at your terrace and balcony. What is more impressive about these lights' versatility is that they can be used in conditions such as to light up steps leading to your door. LED illuminations have already found its popular application in outdoor lighting, especially when applied in place like swimming pools that particularly need additional lights throughout the night. If you can visualize a use for LED lighting outdoor, you will find actually there are already existing LED products for that purpose.
LED Lighting for garden and outdoor use has become popular because of LEDs' affordable and efficient characteristics. LED lights are consisting of clusters of tiny LEDs to produce a bright glow and they have been proven to be highly efficient. A typical LED light can last to more than 50,000 hours and because of this reason, they are an ideal lighting source. Old traditional outdoor lighting typically use high wattage light bulbs in order to produce enough light to light desired areas. Therefore, if lights stay on all nights, lighting electricity cost can accumulate to an astonishing amount on your monthly bill.
Despite the fact that LED lights are the environment friendly choice, many people prefer LED lights for reason of the amount of energy consume, their cost effectiveness and electricity saving characteristics. LEDs provide pure light and generate relatively small amount of heat. Durability is also a factor that makes LED lights a wise choice because they can easily endure harsh environments.
Different from the traditional incandescent light bulbs we are accustomed to, LED lights are long lasting. Also, LED lights are made from solid state components so they do not break as easily as glass incandescent light bulbs. This fact makes them very resilient to external shock and much more durable than fragile incandescent light bulbs. Moreover, LED lights come in various different sizes, shapes and colors, more than what we can expect from the traditional light sources.
LED lightings are capable of emitting intended light colors without using light filters that were require by traditional lighting methods. LED lights can be easily dimmed by either lowering their forward current or by manipulate their pulse-width modulation.
LED lights use approximately 95 percent less energy than the old traditional glass incandescent light bulbs Reasons being that LED bulbs last for years, in addition to the energy saved, there are also less maintenance and replacement relative costs. Costing saving can be a major benefit of using LED lights; most LED light bulbs consume only two to ten watts of electricity to operate.
The longevity of an incandescent light bulb when compare to that of a LED bulb is shocking, a LED bulb while being energy-efficient can last up to approximately 60,000 hours while the of an incandescent light bulb only last about 1,000 hours. A LED light bulb last 10 times long than Compact Florescent light bulb and even longer when compare to that of an incandescent light bulb.
Outdoor LED lights are typically use for security, safety, utility and atmosphere purpose. Security lights are mainly motion activated and are mounted to walls outside along a driveway or around a doorway. Safety and utility lights are lights that make you felt safe, by effectively light up pathways, patios and decks.
These outdoor lights can be use effectively to produce pleasing atmosphere. For example ground level LED lights can be used to light up gardens and flower beds, accentuate features of a garden and bringing plants to life. LED spotlights, on the other hand, draw attention to trees or flowers by creating silhouettes behind the desired objects. Uplights are a choice used to create dramatic lighting at the base of walls and other places while Downlights eliminate larger, wide areas including walkways and to increase security. LED rope lights and strings of tiny LED light bulbs can be strung along a fence, on garden borders, branches and around trees.
During big events like Christmas, lighting costs are known to be extremely high. By utilizing LED illuminations in replacement, house owner can cut back on their electricity consumptions. Furthermore these decorative LED lights are the same price as the order traditional decorative lights, leave you no reason to not acquire these energy saving and environmental friendly products. It is a fact that LED illuminations have been use is large size Christmas interior décor due to the great intensity of the light bulb.
The great thing about these LED light bulbs is their dazzling brightness; the light they generate can create a major visibility then traditional Christmas light can not compare These new LED decorative lights can last up to about 30 year and come in different size and shape, guarantee. that most customers can find the light that suit their expected decorative style.
LEDinside believes that because led street light wholesale are small in size and yet produce decorative lighting that to other external illumination can compete without wasting a large amount of electricity. By considering the fact that LEDs have been prevalently use in lighting up pathways and streets, they are made with safety as a primary concern. These exterior LED lights are accepted as the least hazardous lighting products on the market.
LED Lights to Create and Set Ambiance
LED lights are starting to replace lights used in places like salons, amusement parks, and even courthouses. LED lighting is a major trend either in households or for architectural purposes. Some of the most prevalent decorative lightings include street bulbs, light strips, rope lights , floor lights and spotlights. Of course you will soon have a string of Christmas led high bay light wholesale lying somewhere in your house.
People who are thinking of becoming a house owner, it is important for them to decide the details of the house they want from a enormous pool of choices because soon even the smallest detail of their living space is going to have an impact on their life. Unless one has passed through the estate agent, the banking institutions and a load of legal paper, one can start to imagine about its interior design if they have a specific taste how the inside of their house should look. Personalization of the interior illumination using LED lamps is a fantastic idea, it is highly recommended but neither necessary for new house owner to hire a technician to make specific request and fine-tune the ambiance of interior lighting in general.
Often one feature that new house owner go beyond than what is necessary is the brightness of lights within each and every of the rooms inside their home. It is true that not all rooms are for the exact purpose and most of them require various intensities of lighting . The brightness set the mood for a specific room will unquestionably affect one's feeling as well as its functionality. With LED lights installed into every perfect location, they will produce a comfort home environment with ease, and with stability that all of us can anticipate every day.
The large pool of various choices of LED light bulbs was created to greatly reduce the electricity and energy wasted in form of heat release on to our planet every second. LED light bulbs are now a symbol for unveiling our physical and emotional wellbeing as being an eco -friendly person with sense of awareness.
With the brief overview on these essential features on the LED light fixtures, it is certain that these light bulbs take parts in shaping our life, impact on our temper, mood and state of mind. For example area in your residence that is not well- lit, would typically received negative feedbacks like the room being gloomy and hazardous, with the same can go for extremely bright, over-lit places, creating a visually unpleasant even embarrassing experience. Light have been acknowledged as an element we employ to vision the surrounding we see and around us.
The light are responsible for stimulate the cellular material that are at the back of our eyeballs, and for this reason, we can associate light with a detrimental or positive aspects of our past experience. The retina then delivers electric pulses that are sent through the brain and transported to the optic nerve. The process of visual processing is what allows us to feel and vision the environment surround us. It is no trick, light settings have been proven through studies to affect aspect of our bodies and our experience in an environment and our moods.
Depends on your preference and functionality of each rooms and areas, one should determine the correct lighting fixture that is going to provide the maximum comfort.
As stated above, it is suggested to avoid top glowing lighting because it could generate physical distress as well as visual tension for some people. Moreover, lights that are too low in intensities should also be avoid due to its potential of causing gloomy feelings and could lead up to lowering of physical activities. Due to the psychological effects that various brightness of light can have on its residents, it is important for the house owner to make a proper choice in each every area of their household.
LED lights are recommended for house owners for the reasons of precisely positive feeling and a proficient lifestyle, now you can have this feeling in you possession, the sense of well-being in your household.
LED lights have been applied in various commercial spaces, including restaurants, retail stores, museums, amusement parks. These lights have been test to satisfy finicky customers and designers, as they apply LED lighting to enhance the look of their interior design, set the ambiance of an environment, light merchandises and complement art works.
Lighting for the commercial sector is a good business niche, it also helps companies to grow, commercial customer have to think about initial costs and longer term payback when installing light fixtures, at an initial price that will discourage noncommercial customers. For example at retails stores , managers have to decide exceptionally good lighting system to create a welcoming ambiance to lure in people to their shops.
LED conversion could not be taken place in a better time, for that the nation is experiencing quite a financial crisis with the debt crises going on in Europe. Any form of help that are going to lessen the utility bills will be encouraged. LED is perfect for the task of saving national lighting electricity bill.
LEDs are extremely efficient. The luminous functionality of LED is approximately 70 to 100 lumens per watt. In comparison, incandescent light bulbs' luminous functionality is merely 8 to 15 lumens per watt. Therefore, LEDs are more energy efficient, unlike incandescent light bulbs release a large portion of its energy in a form of heat wasted. LEDs are eco-friendly because they do not incorporate mercury or lead in its manufacturing process and they do not emit UV rays and infrared. LED use a low voltage to operate and release very little heat so they are cool enough to touch. LEDs also run quietly and can be dimmed effortlessly.
The most advantageous versatility of LED lights is their design flexibility. LEDs come in various different sizes and colors, and due to its small in size, you can create any shape and clusters of light using a designated numbers of them. LEDs are available in a majority of warm white, white, red, blue, yellow and more. LEDs can be modified to emit specified color tone and brightness.
There are merits about LEDs that Designers can easily take advantage of. For example at the Ripley's Mirror Maze attraction, 100 mirrors were designed with digital sound and LEDs in order to build a mind blowing maze. Take place in El Paso, Texas recreation center, this maze is about 2,000 square feet big and includes dead ends and continuing loops. The mirrored trails are incorporated with sound effects to enrich the maze with more dimension and surprises.
The use of LED light as a treatment program has been implemented by many surgeons. Also a great deals of Salons have made use of led high bay light for sale as a treatment, the practical uses of LEDs are becoming versatile and prevalent. Furthermore, A wall surface inside of the new federal courthouse designed by Antoine Predock, had been instilled with LED lights to create a light displays that pass from shades of orange to baby pink, to red and white and finally dazzling with blue lights. The design is explained as a simulation of the West Texan desert sky. This new project titled SKY is designed by a New York based artist Leo Villareal. The design and lighting sequence is entirely set by complex computer calculation.
People who are thinking of becoming a house owner, it is important for them to decide the details of the house they want from a enormous pool of choices because soon even the smallest detail of their living space is going to have an impact on their life. Unless one has passed through the estate agent, the banking institutions and a load of legal paper, one can start to imagine about its interior design if they have a specific taste how the inside of their house should look. Personalization of the interior illumination using LED lamps is a fantastic idea, it is highly recommended but neither necessary for new house owner to hire a technician to make specific request and fine-tune the ambiance of interior lighting in general.
Often one feature that new house owner go beyond than what is necessary is the brightness of lights within each and every of the rooms inside their home. It is true that not all rooms are for the exact purpose and most of them require various intensities of lighting . The brightness set the mood for a specific room will unquestionably affect one's feeling as well as its functionality. With LED lights installed into every perfect location, they will produce a comfort home environment with ease, and with stability that all of us can anticipate every day.
The large pool of various choices of LED light bulbs was created to greatly reduce the electricity and energy wasted in form of heat release on to our planet every second. LED light bulbs are now a symbol for unveiling our physical and emotional wellbeing as being an eco -friendly person with sense of awareness.
With the brief overview on these essential features on the LED light fixtures, it is certain that these light bulbs take parts in shaping our life, impact on our temper, mood and state of mind. For example area in your residence that is not well- lit, would typically received negative feedbacks like the room being gloomy and hazardous, with the same can go for extremely bright, over-lit places, creating a visually unpleasant even embarrassing experience. Light have been acknowledged as an element we employ to vision the surrounding we see and around us.
The light are responsible for stimulate the cellular material that are at the back of our eyeballs, and for this reason, we can associate light with a detrimental or positive aspects of our past experience. The retina then delivers electric pulses that are sent through the brain and transported to the optic nerve. The process of visual processing is what allows us to feel and vision the environment surround us. It is no trick, light settings have been proven through studies to affect aspect of our bodies and our experience in an environment and our moods.
Depends on your preference and functionality of each rooms and areas, one should determine the correct lighting fixture that is going to provide the maximum comfort.
As stated above, it is suggested to avoid top glowing lighting because it could generate physical distress as well as visual tension for some people. Moreover, lights that are too low in intensities should also be avoid due to its potential of causing gloomy feelings and could lead up to lowering of physical activities. Due to the psychological effects that various brightness of light can have on its residents, it is important for the house owner to make a proper choice in each every area of their household.
LED lights are recommended for house owners for the reasons of precisely positive feeling and a proficient lifestyle, now you can have this feeling in you possession, the sense of well-being in your household.
LED lights have been applied in various commercial spaces, including restaurants, retail stores, museums, amusement parks. These lights have been test to satisfy finicky customers and designers, as they apply LED lighting to enhance the look of their interior design, set the ambiance of an environment, light merchandises and complement art works.
Lighting for the commercial sector is a good business niche, it also helps companies to grow, commercial customer have to think about initial costs and longer term payback when installing light fixtures, at an initial price that will discourage noncommercial customers. For example at retails stores , managers have to decide exceptionally good lighting system to create a welcoming ambiance to lure in people to their shops.
LED conversion could not be taken place in a better time, for that the nation is experiencing quite a financial crisis with the debt crises going on in Europe. Any form of help that are going to lessen the utility bills will be encouraged. LED is perfect for the task of saving national lighting electricity bill.
LEDs are extremely efficient. The luminous functionality of LED is approximately 70 to 100 lumens per watt. In comparison, incandescent light bulbs' luminous functionality is merely 8 to 15 lumens per watt. Therefore, LEDs are more energy efficient, unlike incandescent light bulbs release a large portion of its energy in a form of heat wasted. LEDs are eco-friendly because they do not incorporate mercury or lead in its manufacturing process and they do not emit UV rays and infrared. LED use a low voltage to operate and release very little heat so they are cool enough to touch. LEDs also run quietly and can be dimmed effortlessly.
The most advantageous versatility of LED lights is their design flexibility. LEDs come in various different sizes and colors, and due to its small in size, you can create any shape and clusters of light using a designated numbers of them. LEDs are available in a majority of warm white, white, red, blue, yellow and more. LEDs can be modified to emit specified color tone and brightness.
There are merits about LEDs that Designers can easily take advantage of. For example at the Ripley's Mirror Maze attraction, 100 mirrors were designed with digital sound and LEDs in order to build a mind blowing maze. Take place in El Paso, Texas recreation center, this maze is about 2,000 square feet big and includes dead ends and continuing loops. The mirrored trails are incorporated with sound effects to enrich the maze with more dimension and surprises.
The use of LED light as a treatment program has been implemented by many surgeons. Also a great deals of Salons have made use of led high bay light for sale as a treatment, the practical uses of LEDs are becoming versatile and prevalent. Furthermore, A wall surface inside of the new federal courthouse designed by Antoine Predock, had been instilled with LED lights to create a light displays that pass from shades of orange to baby pink, to red and white and finally dazzling with blue lights. The design is explained as a simulation of the West Texan desert sky. This new project titled SKY is designed by a New York based artist Leo Villareal. The design and lighting sequence is entirely set by complex computer calculation.
The Future design for the next generation LEDs
LEDs have continued to evolve as the years roll by. Lots of exciting designs have been seen in many of them. The future promises to be more surprising when it comes to LED designs. In this write-up, we're going to be examining the future design possibilities expected of the next generation LEDs.
Actually, brighter and cheaper led street lighting Manufacturer do come up every few months. All kinds of modern day designing processes are used in manufacturing them. So many manufacturers have come into the business. Today, many of our lighting products are fast becoming brighter and affordable. This is because of the changes noticed in the designing of LEDs. There are specific aspects to be considered in the future designs of LEDs. Let's take a look at some of them.
This is one unique aspect that must be considered in the future designs of LEDs. There's the possibility of an interface of the light with a lighting controller. This is likely to take substantial time and money to implement. It's likely to involve special hardware and software products. There may also be circumstances whereby you may want to communicate with your light. Some large installations of lights in big offices may require central control. They may need to be put off in the evening time when every staff member has closed for the day . Again, they may also need to be turned on in the morning. Hence, there's a need to integrate a central control unit for all the lights so that workers may not need to walk around every morning and evening to put them on or off as the case may be.
There's also the future possibility of integrating DALI protocol for digital dimming. This is expected to add extra flexibility to lighting systems. It will also help in controlling up to 64 luminaries from a single pair of signal cables. This kind of approach is expected to benefit larger installations of lights in office buildings a great deal. It will also be useful where intelligent lighting systems are mainly used for presence detection, daylight harvesting and other advanced energy management techniques.
Actually, the term "DALI" refers to a Digital Addressable Lighting Interface which is designed to replace and enhance the traditional 0 -. 10 V analog dimmer It serves as an open lighting control protocol that is backed by major manufacturers of lighting systems It has. also been designed as the most suitable control standards for most fluorescent ballasts.
A typical two wire DALI network is designed to support up to 64 lighting devices. It also uses Manchester encoding mechanism which makes the polarity of the wires interchangeable. This results in fool-proof installation at any time.
. Meanwhile the DALI protocol has a relatively low baud rate of 1200 bit per second However, this is sufficient to turn on, turn off or dim a light source DALI is also an addressable protocol;. Hence devices can also be addressed individually or in groups . A DALI master device can easily control a single light or groups of light while a DALI command can be extended from typical level dimming and scene setting to incorporating environmental sensors for motion sensing and ambient light. The DALI standard can also include extensibility of the manufacturer's specific commands.
The ZeeBee open standard technology is yet another future design possibility reserved for the next generation of LEDs. The ZigBee protocol is being spearheaded by various utility companies. They use it to enhance energy inside homes where different appliances can accommodate and control themselves. The electric usage is broadcast from an electric meter with the hope of helping consumers to use their home appliances better. They can easily turn off unnecessary appliances while using the necessary ones at the same time.
It's expected that in the foreseeable future, the display panel of the ZigBee could morph into a control panel which will help in controlling lights and other needed appliances. All ZigBee devices are expected to run a complete software stack to ensure interoperability.
This is also another feat that is expected in the future designs of LEDS. It's simply another wired communication technology that requires no dedicated wire. The command control functions can easily be sent and received on 110 or 220 VAC wires.
Actually, there are already variations of power-line communications existing here and there. Frequency shift keying (FSK) is one of the most popular choices. It has a low data rate for the command and control functions. High frequency communication on 69 Hz power line is usually used in the method.
Meanwhile the quality of power-line communication actually varies. There's an error correction system involved. For instance, the Forward Error Correction helps in reducing the error rate and also improves the bandwidth of the medium. The data rate can also achieve 30 kbps or higher .
When compared to a regular switch, the power line communication requires an MCU to run on a given network stack. That notwithstanding, it has lots of benefits. The software stack can make the network to expand thereby connecting and controlling every smart appliance plugged to the power line. Many utility companies have started evaluating power line communications as a unique complementary technology. They use that for Smart Energy Home Area Network.
In all, the future still holds a lot for led street light wholesale and their designs. Several manufacturers have come into the business. As a result, several kinds of LEDs are being produced on regular basis. The LEDs of yesteryears are likely to become obsolete in the near future. The future designs seen in the next generation LEDs are quite awesome. LEDs will be becoming more useful and less expensive. This will in turn make so many lighting systems to become brighter. Several control systems are being developed. The future of LEDs is indeed bright. The rate of development seen in LED designs is quite tremendous. It actually matches the rate of changes seen in the area of scientific technology.
Actually, brighter and cheaper led street lighting Manufacturer do come up every few months. All kinds of modern day designing processes are used in manufacturing them. So many manufacturers have come into the business. Today, many of our lighting products are fast becoming brighter and affordable. This is because of the changes noticed in the designing of LEDs. There are specific aspects to be considered in the future designs of LEDs. Let's take a look at some of them.
This is one unique aspect that must be considered in the future designs of LEDs. There's the possibility of an interface of the light with a lighting controller. This is likely to take substantial time and money to implement. It's likely to involve special hardware and software products. There may also be circumstances whereby you may want to communicate with your light. Some large installations of lights in big offices may require central control. They may need to be put off in the evening time when every staff member has closed for the day . Again, they may also need to be turned on in the morning. Hence, there's a need to integrate a central control unit for all the lights so that workers may not need to walk around every morning and evening to put them on or off as the case may be.
There's also the future possibility of integrating DALI protocol for digital dimming. This is expected to add extra flexibility to lighting systems. It will also help in controlling up to 64 luminaries from a single pair of signal cables. This kind of approach is expected to benefit larger installations of lights in office buildings a great deal. It will also be useful where intelligent lighting systems are mainly used for presence detection, daylight harvesting and other advanced energy management techniques.
Actually, the term "DALI" refers to a Digital Addressable Lighting Interface which is designed to replace and enhance the traditional 0 -. 10 V analog dimmer It serves as an open lighting control protocol that is backed by major manufacturers of lighting systems It has. also been designed as the most suitable control standards for most fluorescent ballasts.
A typical two wire DALI network is designed to support up to 64 lighting devices. It also uses Manchester encoding mechanism which makes the polarity of the wires interchangeable. This results in fool-proof installation at any time.
. Meanwhile the DALI protocol has a relatively low baud rate of 1200 bit per second However, this is sufficient to turn on, turn off or dim a light source DALI is also an addressable protocol;. Hence devices can also be addressed individually or in groups . A DALI master device can easily control a single light or groups of light while a DALI command can be extended from typical level dimming and scene setting to incorporating environmental sensors for motion sensing and ambient light. The DALI standard can also include extensibility of the manufacturer's specific commands.
The ZeeBee open standard technology is yet another future design possibility reserved for the next generation of LEDs. The ZigBee protocol is being spearheaded by various utility companies. They use it to enhance energy inside homes where different appliances can accommodate and control themselves. The electric usage is broadcast from an electric meter with the hope of helping consumers to use their home appliances better. They can easily turn off unnecessary appliances while using the necessary ones at the same time.
It's expected that in the foreseeable future, the display panel of the ZigBee could morph into a control panel which will help in controlling lights and other needed appliances. All ZigBee devices are expected to run a complete software stack to ensure interoperability.
This is also another feat that is expected in the future designs of LEDS. It's simply another wired communication technology that requires no dedicated wire. The command control functions can easily be sent and received on 110 or 220 VAC wires.
Actually, there are already variations of power-line communications existing here and there. Frequency shift keying (FSK) is one of the most popular choices. It has a low data rate for the command and control functions. High frequency communication on 69 Hz power line is usually used in the method.
Meanwhile the quality of power-line communication actually varies. There's an error correction system involved. For instance, the Forward Error Correction helps in reducing the error rate and also improves the bandwidth of the medium. The data rate can also achieve 30 kbps or higher .
When compared to a regular switch, the power line communication requires an MCU to run on a given network stack. That notwithstanding, it has lots of benefits. The software stack can make the network to expand thereby connecting and controlling every smart appliance plugged to the power line. Many utility companies have started evaluating power line communications as a unique complementary technology. They use that for Smart Energy Home Area Network.
In all, the future still holds a lot for led street light wholesale and their designs. Several manufacturers have come into the business. As a result, several kinds of LEDs are being produced on regular basis. The LEDs of yesteryears are likely to become obsolete in the near future. The future designs seen in the next generation LEDs are quite awesome. LEDs will be becoming more useful and less expensive. This will in turn make so many lighting systems to become brighter. Several control systems are being developed. The future of LEDs is indeed bright. The rate of development seen in LED designs is quite tremendous. It actually matches the rate of changes seen in the area of scientific technology.
Our Fascination with Fluorescents and the end of the Affair?
Earlier this week, news emerged from the US that researchers have developed a new type of lighting that could replace fluorescent bulbs. The new source is reportedly more efficient, produces a better quality of light and is flicker free.
Whilst the concept of led high bay light supplier from polymers is certainly intriguing, I was somewhat taken aback by the attention the story received. After all, we already have viable alternatives for the fluorescent tube that does all of the above. So why are we under the impression that we do not?
To understand the context we need to look back The UK has long had a fascination with the T8 fluorescent tube Wherever you look;.. Whether waiting for a train, riding a bus, working in an office, shopping in a department store, or parking in a car park, the T8 fluorescent is ever present.
Why is the T8 so popular? In a nutshell, a T8 tube emits a lot of light for relatively little power consumption. It also emits all of the way around its surface allowing lighting designers to use reflectors to bounce light around a room.
More recently, the T8 fluorescent has been superseded by the thinner T5. Despite a belief that the T5 is more efficient than the T8, the typical lumen efficacy of a T8 (86-94%) and T5 are, essentially, the same. Other forms of fluorescent technology also exist, including compact fluorescent, 2D, and PL lamps (the curly, low energy lamps sold in their thousands).
Despite this popularity, there are several facts about fluorescent lights that you will not read on the box. A fluorescent lamp is filled with a gas containing low-pressure mercury vapour. The mercury vapour is excited by electricity to produce UV light. The inner surface of the bulb is coated with a fluorescent (and slightly phosphorescent) coating made of varying blends of metallic and rare-earth phosphor salts. The UV light causes the phosphor coating to 'fluoresce', which re-radiates the energy as visible light.
If a fluorescent light is broken, the mercury inside can be released into the air or ground and it is advisable to vacate the room for several minutes if this happens. The reason that we have to dispose of fluorescents in managed recycle centres is that they have to be carefully dismantled in a controlled environment to stop pollution of the ground and atmosphere. It is not just the construction and operation of the fluorescent that causes problems, in practice the performance of a fluorescent is often over played.
Typically a 58W T8 fluorescent claims to emit up to 5,600 lumen with an average lifespan of 20,000 hours, or 2.3 years at continuous run. A 54W T5 fluorescent is rated at up to at 5,000 lumen with the same lifespan. However, how these figures are arrived at needs some consideration. This light output is measured at a room temperature of 35 ° C. With winter starting to bite, even those of us in over-heated offices know that the room temperature is no-where near this high in normal buildings . At a more comfortable 25 ° C, the light output is reduced to approximately 89% for the same power consumption. In addition, the lifetime figure is achieved when the light is run in a 3-hour switching cycle (3 hours on, 15 minutes off). When the light is run in any other way (which it almost certainly will be) the lifetime is reduced.
These factors have long since led luminaire designers to look for viable alternatives. A LED (a light-emitting diode) is a semiconductor that converts electricity into light. Traditionally associated with the small red light on your TV monitor or remote, LED lighting technology has seen major development in recent years, fast-becoming a better alternative to traditional lighting technologies. LEDs emit a high light output for less power consumption (40-50% lower), have a higher luminous efficacy (up to 95%), a long -life (35,000 to 50,000 hours) and are safe with no strobing or flicker.
Architects, contractors and end-users are increasingly opting to install LED panel lights in place of the 4-tube fluorescent modular lights often seen in offices. So why not also retrofit LED tubes? The truth is that early adopters of LED tubes found them to be a disappointment. LED tubes are made, predominantly, from a plastic tube within which the LED chips and their driver electronics are mounted. When the LED heated up, the plastic tube could warp causing the light to fail. In addition, because LEDs emit light in one direction, when retrofitting into fluorescent fittings, the LED tubes could not always direct the light where it was needed.
But LED technology has moved on dramatically in recent years and design innovations have successfully eradicated these issues. The introduction of aluminium to the external structure of the LED tube now provides a structurally sound product, eliminating the warping common in early models. The continual development of the luminous efficacy of led high bay light for sale (how much light is emitted for power consumed) has seen figures in excess of 100 lumens per watt, which matches that of a T5 fluorescent. In my company, for example, several design innovations within our LED tube product range have dramatically increased our ability to compete in the traditional fluorescent market, including the advent of rotatable end caps that allow the installer to easily retrofit the tube into any fitting, and the introduction of LED tubes that emit light upwards as well as downwards emulating the all round light distribution of fluorescents.
This kind of advanced technology is resulting in a steady increase in the adoption of LED tubes for property retrofit projects. Whilst the cost of LED is still relatively high compared to fluorescent, the high level of performance, length of reliable life span, safety and flexibility of these tubes positions them as an attractive and commercially viable alternative. The only real barrier to LED adoption is lack of understanding or experience with these products. New inventions in the field are welcome and will drive continued innovation, but perhaps we should pay more attention to the existing technology that's ready and waiting.
Whilst the concept of led high bay light supplier from polymers is certainly intriguing, I was somewhat taken aback by the attention the story received. After all, we already have viable alternatives for the fluorescent tube that does all of the above. So why are we under the impression that we do not?
To understand the context we need to look back The UK has long had a fascination with the T8 fluorescent tube Wherever you look;.. Whether waiting for a train, riding a bus, working in an office, shopping in a department store, or parking in a car park, the T8 fluorescent is ever present.
Why is the T8 so popular? In a nutshell, a T8 tube emits a lot of light for relatively little power consumption. It also emits all of the way around its surface allowing lighting designers to use reflectors to bounce light around a room.
More recently, the T8 fluorescent has been superseded by the thinner T5. Despite a belief that the T5 is more efficient than the T8, the typical lumen efficacy of a T8 (86-94%) and T5 are, essentially, the same. Other forms of fluorescent technology also exist, including compact fluorescent, 2D, and PL lamps (the curly, low energy lamps sold in their thousands).
Despite this popularity, there are several facts about fluorescent lights that you will not read on the box. A fluorescent lamp is filled with a gas containing low-pressure mercury vapour. The mercury vapour is excited by electricity to produce UV light. The inner surface of the bulb is coated with a fluorescent (and slightly phosphorescent) coating made of varying blends of metallic and rare-earth phosphor salts. The UV light causes the phosphor coating to 'fluoresce', which re-radiates the energy as visible light.
If a fluorescent light is broken, the mercury inside can be released into the air or ground and it is advisable to vacate the room for several minutes if this happens. The reason that we have to dispose of fluorescents in managed recycle centres is that they have to be carefully dismantled in a controlled environment to stop pollution of the ground and atmosphere. It is not just the construction and operation of the fluorescent that causes problems, in practice the performance of a fluorescent is often over played.
Typically a 58W T8 fluorescent claims to emit up to 5,600 lumen with an average lifespan of 20,000 hours, or 2.3 years at continuous run. A 54W T5 fluorescent is rated at up to at 5,000 lumen with the same lifespan. However, how these figures are arrived at needs some consideration. This light output is measured at a room temperature of 35 ° C. With winter starting to bite, even those of us in over-heated offices know that the room temperature is no-where near this high in normal buildings . At a more comfortable 25 ° C, the light output is reduced to approximately 89% for the same power consumption. In addition, the lifetime figure is achieved when the light is run in a 3-hour switching cycle (3 hours on, 15 minutes off). When the light is run in any other way (which it almost certainly will be) the lifetime is reduced.
These factors have long since led luminaire designers to look for viable alternatives. A LED (a light-emitting diode) is a semiconductor that converts electricity into light. Traditionally associated with the small red light on your TV monitor or remote, LED lighting technology has seen major development in recent years, fast-becoming a better alternative to traditional lighting technologies. LEDs emit a high light output for less power consumption (40-50% lower), have a higher luminous efficacy (up to 95%), a long -life (35,000 to 50,000 hours) and are safe with no strobing or flicker.
Architects, contractors and end-users are increasingly opting to install LED panel lights in place of the 4-tube fluorescent modular lights often seen in offices. So why not also retrofit LED tubes? The truth is that early adopters of LED tubes found them to be a disappointment. LED tubes are made, predominantly, from a plastic tube within which the LED chips and their driver electronics are mounted. When the LED heated up, the plastic tube could warp causing the light to fail. In addition, because LEDs emit light in one direction, when retrofitting into fluorescent fittings, the LED tubes could not always direct the light where it was needed.
But LED technology has moved on dramatically in recent years and design innovations have successfully eradicated these issues. The introduction of aluminium to the external structure of the LED tube now provides a structurally sound product, eliminating the warping common in early models. The continual development of the luminous efficacy of led high bay light for sale (how much light is emitted for power consumed) has seen figures in excess of 100 lumens per watt, which matches that of a T5 fluorescent. In my company, for example, several design innovations within our LED tube product range have dramatically increased our ability to compete in the traditional fluorescent market, including the advent of rotatable end caps that allow the installer to easily retrofit the tube into any fitting, and the introduction of LED tubes that emit light upwards as well as downwards emulating the all round light distribution of fluorescents.
This kind of advanced technology is resulting in a steady increase in the adoption of LED tubes for property retrofit projects. Whilst the cost of LED is still relatively high compared to fluorescent, the high level of performance, length of reliable life span, safety and flexibility of these tubes positions them as an attractive and commercially viable alternative. The only real barrier to LED adoption is lack of understanding or experience with these products. New inventions in the field are welcome and will drive continued innovation, but perhaps we should pay more attention to the existing technology that's ready and waiting.
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