2013年6月23日星期日
The advantages of the LED display
LED display development so far, has been increasingly recognized by society, has become an outdoor media advertising carrier. Shenzhen Lead Optoelectronic Technology Co. Ltd below for you to explain the advantages of the LED display.
LED high bay inherent characteristics of the decision it is the ideal light source to replace the traditional light source, it has a wide range of uses.
Small
LED is basically a small chip is encapsulated in epoxy resin inside, so it is very small, very light.
Low power consumption
LED power consumption is very low, in general, the operating voltage is 2-3.6V. Operating current is 0.02-0.03A. That is to say: it does not exceed power consumption of 0.1W.
Long life
At the right current and voltage, LED high bay life of up to 100,000 hours.
High brightness, low heat
Less than HID or incandescent thermal radiation.
Green
LED is a non-toxic materials, unlike fluorescent lamps containing mercury can cause pollution, but can also be recycled. Red contains a lot of AS (arsenic), toxic
Rugged
It is completely encapsulated in epoxy resin inside than light bulbs and fluorescent tubes which are solid. Light body and no loose parts, these features make the LED can be said that is not easy to damage.
Controllable
Can achieve a variety of color changes.
LED light features:
1, Voltage: LED using low voltage power supply, power supply voltage between 6-24v, varies depending on the product, so it is a more secure than using a high voltage power supply, especially for public places.
2, performance: energy consumption compared with incandescent light efficiency 80% reduction.
3 Applicability: small, small piece of each unit LED 3-5mm square, it can be prepared into various shapes of devices, and for the environment variable.
4 Stability: 100,000 hours, the light fades to the initial 50%.
5 Response time: the incandescent millisecond response time, LED high bay lights nanosecond response time.
6, of environmental pollution: no harmful metal mercury.
7, change the current color, light-emitting diodes by chemical modification methods to easily adjust the material's band structure and band gap, to achieve multi-color light orange red Huanglv Lan. Such as small current when the red LED, as the current increases, you can turn to orange, yellow, and finally green.
8, price: LED price is expensive, compared to incandescent lamps, the price of a few LED incandescent lamp with a price considerably, but typically each signal to be 300-500 only diodes.
and source from:www.lead-lighting.com
It is the Only Way Out to Innovative design for LED lighting
2013 was known as the "LED reign", LED high bay light industry into the structural upgrading. In this Guangzhou International Lighting Exhibition, this trend is more pronounced. As LED important manufacturing base and the world's largest application market, China is increasingly optimistic about the international LED giant. LED lighting industry has become the new situation, and the light quality has become the new focus of the industry, many companies demonstrate intelligence as the focal point, innovative design is perhaps the LED business to get rid of low-price competition one of the most powerful weapons.
Industry: Not yet expedition enters winter
LED lighting was once considered the prospect of unlimited sunrise industry, however, the blind expansion of production capacity to brief industry into the winter. According to the Guangdong Guangya Lighting Research Institute released a report, LED backlight and lighting market demand, chip, package, and application vendors orders full. Some entrepreneurs and industry analysts even believe that, LED's broke open the fourth quarter of this year, the next 7-8 years will usher in a period of prosperity.
"But the industry, low threshold, high government subsidies and preferential tax policies, many companies come crush, low excess capacity situation is more serious." Guangzhou International Lighting Exhibition founder Dr. Pan Wenbo expressed.
Low excess capacity result is vicious intense. "LED products, various components have been standardized, so long as to Zhongshan to buy these components, you can assemble their own and some small factory to hire a few people, purchasing a variety of low-end components back on the production of LED products, but the price is very low, such as a three watt LED high bay light， if all components at wholesale purchases, costs around $ 7, and can be sold on the market at least 15 dollars or more. "Of course, these low-end knockoff, and the quality is seriously flawed, in which heat well, the light fades fast led to its product life is limited. Dr. Pan Wenbo said, "vicious competition, something is certainly produced the goods on the price consumers are not satisfied with the outcome of a product, so harder to promote LED lighting, creating a vicious cycle."
Insiders said, LED prices are now getting lower and lower, the quality is getting worse, do LED enterprises themselves can not agree with its value, let alone consumers. Development for so many years, LED biggest problem is still cooling and the light fades, it will affect life expectancy, but also affect the quality.
Dilemma: technical deficiencies lead to exports
In the global energy shortage situation, LED high bay light its energy-saving, environmental protection, long life and other advantages, to become a leader in the lighting industry products. According to Chinese customs data show that in 2012 China LED lighting exports amounted to approximately $ 5.8 billion, the United States, Japan and Western Europe is still the Chinese LED lighting major export markets. But with many countries and regions in recent years, LED lighting products for imports set a higher threshold for the application of LED lighting products made mandatory certification requirements. Only in 2012 the EU Rapid Alert System for non-food products (RAPEX) notification LED lighting products, China's exports of 37 times. Which, due to creepage distances or clearances inadequate performance caused by poor insulation to be notified 29 times.
Insiders revealed that domestic lighting industry is developing rapidly due to government support throughout, but a direct result of the consequences of excess capacity, has recently been introduced to support the plan's first LED industry in Shenzhen, has quietly become the first to abolish the plan of the city. Previously, Shenzhen has proposed the completion of important national and global LED industry research and production base by 2015, industry scale reached 130 billion yuan or more. However, this year, relevant departments of the Shenzhen Municipal Government abolished "on the issuance of Shenzhen LED Industry Development Plan (2009-2015) of the notice." Industry sources pointed out that Shenzhen annul their planning, means that the government will no longer be on the LED production enterprises and the industrial development of financial subsidies, perhaps another sign of the future, or will rely on market-oriented regulation.
One side is an attractive market prospects, while it is from government and industry cold. From Jiangsu Tianying Light Optoelectronics Technology Co., Ltd. Vice President Zhang Tao Bo said that the current problems facing the industry is mainly overcapacity, although there are many companies in the high-end brand name, but the technical indicators meet such demand is still low estimated current market, 90% of the products are low-end products. For the lighting industry, if abused, or does not meet the market demand led to further expansion of production capacity, or become a bad lot Pushing Hands. Prior to industry sources have said that the Shenzhen Municipal Government to make planning decisions annulled, but also to avoid the LED industry to become the second photovoltaic industry.
Way: How to get rid of low-cost innovative design competition
Guangzhou International Lighting Exhibition, several major lighting giants have launched the latest LED products, unlike last year, these LED products not only cover the entire commercial lighting system, and lighting system covering the entire household.
Reporters on the scene saw some manufacturers design wooden Zhongshan LED high bay light gained the favor of foreign procurement, but its quality, these foreign procurement still somewhat hesitant. Kingsun Chen Guodong, director of marketing, told reporters in the LED market, in addition downlights, other products are mostly no mandatory national standards for certification. And the domestic chip development truly very few companies, many of which are patented brand of choice in Europe and America. If you want to meet international standards, such as the excellent technology, to meet the demand and experiential enjoy such demand, the domestic LED lighting products difficult to achieve. That is, if you do not get rid of low-price competition on innovative design model, the domestic LED photovoltaic industry may soon face the dilemma.
More info you can visit:www.lead-lighting.com
The Price War? The Channel war? What is the future development of the LED?
LED lighting industry in recent years is the hottest star. Whether rapid technological innovation, or the people of this "energy artifact" increasingly common knowledge, "LED high bay light how the future development," stirring a universal nerve. We analyzed according to the NBA Finals LED is how policy, price war, the channel war, fighting to get the lighting industry consolidation tournament championship?
LED policy first stop war victory
Environment and Resources Committee announced that from our energy-saving green lighting demonstration project implementation, to "national basic public service system" second five "plan" introduced, the study identifies energy-efficient appliances and other products to promote consumer policy; NDRC official release from China to phase out incandescent roadmap, and then five steps to gradually ban the import and sale of incandescent lamps are being implemented.
Until recently the Guangdong provincial government issued "on further intensify its efforts to ensure the promotion of the use of LED lighting products to complete the tasks of the notice" proposed LED lighting adhere unswervingly promote the use of objectives and tasks to ensure completion before the end of 2014 the province's universal public lighting LED high bay light tasks. Among them, the Pearl River Delta region must take the lead before the end of 2013 to complete the task. LED industry is currently booming period, despite the severe overcapacity, but in the separatist warlords hard world, the critical time, the brutal competition match for the future market of great temptation.
Significant price war intensified demand for the release
We maintain basic for the LED industry, good judgment, and judgment LED bulb prices will further downwards. End-product prices, is conducive to demand accelerated release, but for the industry chain manufacturers, it may mean that the profitability of further pressure. Vendor profitability will thus begin to differentiate, some dominant position on the industrial chain manufacturers may by virtue of economies of scale and other advantages of the pressure brought to resolve the price, but there will be some manufacturers in prices, increased competition in the process of being eliminated.
From April the global LED bulbs offer situation, prices fall further, the competition between manufacturers is gradually warming up, some of the original price of the mainstream at a high international lighting manufacturers product dropped to 10 euros less (replace 40W incandescent product).
Replace 40W and 60W incandescent LED high bay light lowest price point has come to $ 4.1, respectively, and $ 5.7, the average price of $ 16.1 and $ 23.8.
In Europe, prices showed a larger decline. UK and Germany respectively, replace 40W products by 5.3% and 13.2% decline, replacing 60W products decreased by 4.8% and 7.3%.
China region replaces 40W product prices decreased by 9% to the world's lowest.
Source from:www.lead-lighting.com
2013年6月16日星期日
Upgrading of power led enterprises in Dongguan ------led high bay light
Reporter recently learned, Dongcheng vigorously promote the development of new industries, and promote the transformation and upgrading LED enterprises, and achieved remarkable results.
Guangdong Province in May this year, the introduction of "Guangdong Province to promote the use of LED high bay lights products, implementation plan," Dongguan, in July issued a "Dongguan City to promote the application of LED lighting products work", according to the program within two years of Dongguan City in the universal public places LED lighting.
For many LED enterprises in Dongguan, this is a rare opportunity for development, is also a challenge. With the growing market demand for the product in an increasingly competitive, LED enterprises to upgrade technology to enhance our competitiveness in an important position.
East last year by the state, provincial and municipal identified over 298 science and technology enterprises, the total number of the city ranked in the forefront, not only that, Dongcheng new patents 4622, a total capacity of 13,022 patents, patent development index and index of scientific and technological achievements are located ranking first in the city. With such favorable factors, Dongcheng technology companies gathered development, promote the transformation and upgrading of the conditions become more mature, more prominent advantages.
Dongcheng local LED high bay lights companies are stepping up "skills" and strive to upgrade technology, branding, to seize the opportunity to snatch market cake. Bundchen photoelectric Vice Xuchao Dong introduction, the company invested and built a materials testing, power testing and other six laboratories, increase research and development and testing efforts to achieve from the LED components to finished product testing. In addition, in the first half of this year, re-integration and optimization of the supply chain to respond to growth in orders for the next test of the supply chain, but also set up a "Bundchen Academy", respectively, from the technical and management aspects of enterprise training and reserve personnel.
LED high bay lights industry is supported by the state of the industry. In recent years, Dongguan has become the Ministry of Science, "city of ten thousand," semiconductor lighting application engineering pilot cities, the National Semiconductor Lighting Project-tech industrial base, the LED industry development work with remarkable results.
More info you can visit: www.lead-lighting.com
2012 financial subsidies LED lighting products all 8.73 million ------led the miner's lamp
Recently, the National Development and Reform Commission, Ministry of Science, the Ministry of Finance announced the "organize the 2012 annual financial subsidies to promote the semiconductor lighting products work notice" (hereinafter referred to as "Notice"). "Notice" that the 2012 annual financial subsidies to promote LED high bay light products mainly for government buildings, office buildings, hospitals, hotels, shopping centers, railway stations, airports and other large users of indoor lighting needs as well as highways, streets, squares, tunnels and other outdoor lighting needs.
"Notice" also announced the 2012 annual financial subsidies to promote LED lighting products successful business case, as shown below. It has been observed that this total of 39 successful enterprises, the total number of successful LED lighting products totaled 8.73 million. Among them, the number of indoor lighting up 7.85 million, accounting for nearly 90% of total marketing, mainly due to the October 1 start running out of incandescent policy. Among them, the ground, the total amount bid topped Longpole.
According to the consolidation of successful enterprises, preparation of the "2012 annual financial subsidies semiconductor lighting products successful enterprise Fact Sheet," clearly the product models, specifications, bid prices and business promotion quota, about a year will be used to complete the scheduled campaign.
LED high bay light, LED mining lamp manufacturer -------- Kai Weier (Tianjin) Co., Ltd., specializes in selling LED mining lamp and other LED lighting products.
Within the limits of the sales promotion, you can enjoy the subsidy in accordance with relevant national policies (fiscal subsidies amount of funds available for the bid price of 30% agreement), to take indirect subsidies subsidy funds from the financial subsidies to successful enterprises, and then press the bid by the successful enterprise agreement Delivery price minus the price after the financial subsidies to sell to end users, the ultimate beneficiary is the end user. 2012 annual financial subsidies to promote LED high bay light products are only sold in China, does not restrict marketing regions. "Notice" that the successful enterprises should earnestly fulfill the commitments, in which the commitment to quality LED lamps not less than four years, LED tunnel lights, downlights, spotlights quality commitment of not less than three years. In addition, successful enterprises should promote their products on the packaging and printed by the body, "government subsidies, according to the Green Project" logo.
"Notice" that the number of successful corporate marketing has been issued shall not exceed the limit of corporate marketing, in addition, street lamps, tunnel lights are successful businesses, the amount should not be less than the annual promotion 10000; successful if a single product, the annual promotion volume should not be less than five one thousand. Downlights, spotlights are successful, the amount should not be less than the annual promotion 60000; individual products if successful, the amount should not be less than the annual promotion of 30,000.
The promotional efforts are the successful enterprises, do not organize successful enterprises and local government docking. Namely to promote energy-saving lamps task is assigned to the place, and then place in conjunction with the business to promote. The LED high bay light products with this promotion are very different, successful enterprises to promote the implementation of the work up the body, and assume primary responsibility for the promotion. The local authorities are mainly assist and cooperate with successful enterprises to do a good job promotion.
Source from: www.lead-lighting.com
Unlimited prospects LED interior lighting------ LED High Bay Light
1 strong implementation of national policies
According to the Investment Adviser's "2011-2015 China's semiconductor lighting (renovation renderings) (LED) industry investment analysis and forecast report" shows that in order to get rid of the external and internal negative factors impact the overall home lighting industry in 2011 By adjusting the first half of strategic positioning, product development, marketing mode, channels and human resources strategy, have a positive attitude to seek a breakthrough. Home lighting is also very broad prospects, especially LED high bay lighting cut, the market potential is more limitless.
2012-2014 global incandescent disabled FMCT order to implement the policy, making the incandescent lamp in the market after 2012 will gradually disappear. Insiders expect around within two years, LED home lighting will be explosive attitude into people's lives.
Chinese vice minister of housing construction has stressed: China's annual two billion square meters of new buildings, each building must be at least 20 units in light; "Twelve Five" period, the government will build 36 million units of affordable housing, which will be 5-6 one hundred million LED lights potential applications. According to expert estimates, if 30% of LED lighting, you can save more than 1000 billion kWh. Thus, LED promote the use of our energy reduction is undoubtedly one of the main battlefield.
2 unstoppable industry trends
After nearly two years in Guangzhou Guangya Exhibition, Hong Kong Autumn Lighting (renovation renderings) Guzhen Lighting Fair Show and can be seen, LED products in the modern (renovation renderings) lighting in the home will be more widely applied, LED products, prospects . LED high bay lighting into the home wireless network control era.
In addition to commercial lighting, home lighting began to slip, "the overall solution." With Op home lighting design center, stylish home lighting Philips Pavilion launched, as well as follow-up industry as a whole, overall household lighting became an unstoppable Chinese lighting industry development trend. The overall production of household lighting market demand is there to do some background: a growing number of designers and consumers in the procurement process, a strong desire for a particular brand of products to meet all home lighting needs. And with the younger generation of consumers growing demand for intelligent home climbing, LED home lighting is becoming a reality as a whole.
Whole home lighting concept actually refers to the expansion of the product line, the main products include home lighting them, and according to the different scenes of family life needs, through lighting configuration to achieve the appropriate lighting environment. The LED lighting concept on the one hand the whole household refers to a low-carbon energy LED products fully applied to ordinary families to meet consumer demand for the various places of lighting and LED products will be different between functions complement each other, creating a different family scenes the lighting environment.
3. Market space needed to fill
Lighting companies around the corner. Guzhen LED according enterprises in human resources, product development, marketing and other aspects of investment is already in full swing, the traditional lighting manufacturers are also eager to anyone not far behind, in front of the town lighting business owners who filed LED home lighting, who do not seem to start on To OUT of the development of the industry will eventually be kicked out.
Dealers wistfully. Store sales generally believe that although consumers do not know much for the LED, but the LED in the media in recent years, the frequency is too high, we have to pay attention to it, so it will see the light LED lights initiative to ask the question. However, due to technical aspects of the problem has not been completely resolved, consumers can not reassure them. In addition, the LED lamps generally high prices, consumers are always prohibitive. Nevertheless, LED home lighting dealers prospects are very confident, even now there are many uncertain factors, but the overall LED home lighting is the trend, if given the chance they will not hesitate to sell LED home lighting products.
Consumers urgent needs. For LED high bay lighting into the home, many consumers said that as the country increase the "energy conservation" efforts, the state subsidy policy of energy saving and LED market matures, the deepening of consumer awareness, etc., LED into the home lighting industry is an inevitable trend. And the LED lamp energy saving, long life, saving the cost of living and energy conservation, is both things. However, the majority of consumers said that as profit-driven, LED market is not yet standardized, most LED lights on the market quality varies greatly, different varieties. Especially in terms of price, the price is too high compared to the previous lamps, consumers want companies, manufacturers and other LED lights to increase research and development efforts, reduce production costs, and on the product you want to be able to absorb the energy saving lamps, incandescent bright lights, and the appearance on the hope to make beautiful.
From the point of view of the parties, we applied to the LED home lighting confidence, along with the rapid development of LED industry, LED home lighting in every household is the inevitable result of nearly two years, showing overwhelming revolutionary situation.
4 a key factor in the implementation of blocked
LED outdoor lighting technology development has been basically mature, LED application technology developed are important elements. Development of the industry in the current situation, LED lighting into the home the slow pace, the one is the higher price of the product, especially the living room (renovation renderings) dome, product price and the price falls far short of the lamp now, some even several times higher, the consumption of ordinary people the ability to accept limited. Secondly, LED home lighting product design is also critical in the technical requirements, the current discussion on the LED is more heat. At present, many manufacturers have done a good heat dissipation, good heat dissipation, light decay problems can be solved. On the current situation, as long as prices decline, the family of large area LED's prospects are very bright.
Admittedly, LED high bay lighting in the home field of the high-priced high gate (renovation renderings) threshold is definitely its not the biggest stumbling block of civilians. DTL illumination Managing temperature Xuanrong told reporters: "After years of development and improvements in technology, LED industry, cooling, drive, light, chips and other technologies have made great progress, plus everyone's income has been improving the standard of living is changing, people bring energy saving LED products affordable is craving, which is applied to the whole home lighting LED opportunity. "
LED high bay light, LED mining lamp manufacturer -------- Kai Weier (Tianjin) Co., Ltd., specializes in selling LED mining lamp and other LED lighting products.
Source from :www.lead-lighting.com
Predict the future development of the domestic LED market prospects ------ LED High Bay Light
At present, the enterprise competition in the field of packaging enterprise numerous, no big leading enterprises, but also in other such as display manufacturing field also presents the competition is intense, less but more large-scale enterprises. Today this is the domestic LED high bay lights industry present situation, the author talk about the future of the domestic LED market prospects for development:
Application at the present stage in China market mainly in the building lighting, indoor and outdoor LED display, as a result, the next wave of key may still be the market at present. But in the mobile phone penetration, small size LCD backlight, cars will increase, and some scattered market such as special lighting development also will be bigger (special lighting requirement for cost is not so demanding) general lighting. After the replacement of a few years ago, LED traffic lights has become so common, due to the LED's service life is longer, the electronic display screen in the short term is hard to get huge replacement work, this makes the traffic light will appear to the demand of LED high bay lights a period; Large domestic car market, but the demand is higher, certification cycle is long, so long as has the high quality products, the domestic automobile backlight and LED lights market demand is very large, and the market demand is stable; And LED display with its easy to assemble, low power consumption, high brightness, etc have been widely applied to Banks, securities, square, station, and the stadium hall, the future market still has great potential for growth; In the Olympic Games, world expo and view some city engineering demonstration effect of the drive, and promotion of a number of favorable factors such as national semiconductor lighting project, building lighting market is still wide prospect.
In the long run, the next few years, with the global prevalence of energy conservation and emissions reduction, environmental protection and energy saving is becoming a hot spot market, the LED industry also began to heat up. While the LED high bay lights industry in China after 30 years of development, although has achieve the independent production devices, chips and epitaxial wafer, but produced the LED chip, epitaxial wafer production is still limited, its products mainly medium and low-grade, industrialization of small scale, can satisfy the demand for domestic packaging enterprise is 20% ~ 30%, most of the high performance LED and power LED products rely on imports.
More info you can visit: www.lead-lighting.com
Energy-saving lamps and LED lamps market situation showdown ------ LED High Bay Light
Have a short life because incandescent, energy consumption, coupled with the rising cost of energy for many reasons, incandescent launch stage of history is an inevitable thing, then replace it with the energy-saving lamps and LED high bay lights, that could do better? Before that the true successors of incandescent? we might look, energy-saving lamps and LED lights contrast bar.
1 status of energy-saving lamps
In recent years, our country has been through a lot of manpower, material and financial resources to promote the use of energy-saving lamps. With the phase-out of incandescent lamps, was "freed market for energy-saving lamps brings a huge space for development, more and more companies have introduced energy-saving lamps lighting products, to seize the remaining market.
Currently, energy-saving lamps are the most widely used everyday consumers incandescent replacement product. Its efficiency is more than five times of incandescent bulbs, the average life of about 8,000 hours, mature technology, and lighting, lamps matching, and is a simple and relatively low-cost replacement option. However, energy saving and environmental protection should complement each other in this, but in the energy-saving lamp body, but both went to the opposite, the problem is bound mercury will eventually be replaced with energy-saving lamps fate: a common energy-saving lamps average mercury content 0.5 mg, The mercury dipped underground about 180 tons of water may cause pollution. If the improper disposal of waste energy-saving lamps, is likely to become "eco-killer, and waste energy-saving lamps have also been mishandled," for several years, and even today is still no appropriate policies and measures introduced.
2.LED lamp status
Longer life LED high bay lights source, high efficiency, energy saving, environmental protection and other "theoretical advantage has passed the test of practice, LED light source of the performance parameters have not always used to say," is improving, but "further improve, LED industry as a whole development prospects are generally good.
With the phasing out of incandescent and state subsidies for energy-saving lighting products, LED lighting market has been accelerating. Even in 2012 the industry hopes to popularize the first year of LED interior lighting, LED is gradually tentacles deep into the home lighting market. But now LED lighting products, price issue is still hindered LED home lighting market inroads into the most important factor. In terms of price, the market is 1.2 m long, 21 watt LED lamp normal retail price of 200 yuan, while the same length and wattage of traditional fluorescent tubes basic price less than $ 10; incandescent replacement cost, LED bulbs with the traditional energy-saving lamps in normal circumstances, there are at least eight times higher than the price difference. This price gap is naturally LED lighting into the home environment, the biggest obstacle. Many dealers also said lamps, LED home lighting is still in the promotion phase, more consumers still tend to buy relatively low price energy-saving lamps; in the home market, energy-saving lamps LED high bay lights products remains the biggest rival, And it is always home lighting energy-saving lamps areas of expertise.
LED lighting fixture is undoubtedly the future direction of development, but how to reduce the cost of LED lamps LED whether the popularity of the market has become an important part. In fact, at this time there a few years, LED lighting prices are at an annual rate of 35% -50% down, Fang Tian Technology believe that in the near time, LED lamps prices will drop to every household acceptable range, that time is the era of LED lighting.
source from :www.lead-lighting.com
LED fluorescent compared with the advantages of ordinary fluorescent ------ LED High Bay Light
LED fluorescent energy saving, long life, wide applicability, and the LED small size, easy to make a beautiful image of a variety of commercial purposes. LED fluorescent green, no harmful metal and waste easier to recycle. LED fluorescent beautiful colors, you can make all kinds of phototherapy.
Compared with ordinary fluorescent LED high bay light has many more advantages.
Compared with ordinary fluorescent LED fluorescent advantages under a: LED lamps more environmentally friendly, no pollution to the environment
LED fluorescent lamp is more environmentally friendly than traditional. Because the traditional fluorescent lamp once broken, it will volatilize mercury vapor harmful substances, atmospheric pollution. The LED lamp without the use of harmful substances, no environmental pollution. The twenty-first century recognized green lighting products.
Compared with ordinary fluorescent LED fluorescent under two advantages: LED lamps, low fever, safer, more energy-efficient
LED lighting all the energy is converted to light, there is no waste of energy phenomenon. The traditional lamps in the luminescence process also produced a heat affect lamp life, increase energy expenditure, and has a certain degree of risk.
Compared with ordinary fluorescent LED fluorescent under three advantages: LED light source emits light and soft, protect your eyes
LED fluorescent lamp because it is directly convert AC to DC, no stroboscopic phenomenon, have a good eye protection. The traditional fluorescent lamp is 100-120 times per second strobe will produce long-term use, detrimental to the eyes.
Compared with ordinary fluorescent LED fluorescent under four advantages: longer life
LED high bay light life of an ordinary fluorescent lamp 10 times, besides the traditional fluorescent LED fluorescent lamp power consumption is about one-third, long-term use of more cost-effective. Especially for long-term use fluorescent lamps need a place to reduce replacement costs, as well as less power consumption are significant savings in lighting costs.
Compared with ordinary fluorescent LED fluorescent under five advantages: does not emit ultraviolet light, more secure and reliable
Using traditional fluorescent lighting, they tend to emit ultraviolet light to attract mosquitoes as well as the impact on the surrounding environment. However, because there is no use of LED fluorescent ultraviolet and infrared radiation, protecting his eyes, protect the environment, making the interior more clean and sanitary and clean.
Compared with the traditional fluorescent lamp LED fluorescent There are many advantages, not critical analysis here. LED lamp in the lighting industry's advanced LED fluorescent decision welcomed by the market, in line with the concept of green industries. LED lamp market prospects are very lighting products.
LED high bay light, LED mining lamp manufacturer -------- Kai Weier (Tianjin) Co., Ltd., specializes in selling LED mining lamp and other LED lighting products.
source from: www.lead-lighting.com
2013年6月14日星期五
End the curse of LED light failure with heat dissipation technology
In the application of LED street light industry has been more concerned about the fields. Active agents have, there are powerful opponents. And to "LED street light failure problem" has been a major opposition opponents basis for this, even if it always seems to be an active promoter did not elaborate, or can only make theoretical rebuttal.
Any light will light fades, fades with traditional light source light quality relationship, and the LED light failure, in addition to the quality of light outside, including lamps, including secondary cooling thermal management problems can be talking about the final decisive role. Op Division (OPTOSYS) a core team to enter the LED street light industry for many years previously specialized in the development and manufacture of electronic cooling devices, the LED of the secondary heat problem naturally has a special attention and their own unique interpretation. As a budding technology companies, Op Division has been treated with absolute caution, including reliability problems, including light decay, Op Secretary considers further improved theoretical calculations is also need long-term actual test data confirmed.
Based on this cautious approach, in June 2009 Op Division and Tsinghua University signed a three-year "LED lamp test projects," according to plan, respectively, in July 2009, December 2009 and April 2010 by batches Op Our production installation of LED lights, lighting effects and regularly test its reliability, light, color shift, and other related static and dynamic performance. It is worth mentioning that this test all LED lamps project involves the German OSRAN GoldenDrogon series of light to 700mA high current drive, such a high drive current to the light source 2009, level of technology, even using the top import source, the entire LED street light source lamp technology, especially the effectiveness of the secondary cooling system, the reliability can be said is the ultimate challenge.
From July 2009 to July 2012 three years later, the project is nearing completion, the first installation of LED lights also completed three years of all test items, test street lighting effects, color stability, reliability , the light fades and other indicators of the test results meet or exceed the user's expectations. In terms of reliability, in addition to the first installation of the street there is a drive inside the transformer due desoldering conducted maintenance, another two batches of repair rate is zero.
Source from : www.lead-lighting.com
2013年6月13日星期四
The LED is going to entry the streets in guangdong
LED Let Guangdong city more beautiful.
Since the Spring Festival, Qingyuan City, the 4th district commercial street lanes for over 10 years selling fruit Uncle Liu, night business is getting better, because Qingyuan municipal government in this newly installed six lane 123W LED street lights. Night as day, Uncle Liu fruit looks fresh and dripping. Uncle Liu said: "This lamp nice, bright and energy saving, lit up at night with the day like, not only my business is good, and the band even thieves are gone!"
May 28, 2012, Guangdong Governor Zhu Xiaodan, Guangdong provincial government will announce strong promotion of the application of LED lighting products. On the same day, over and above the provincial government and the municipal government signed promote the application of LED lighting products, "military order." Since then, Guangdong LED promotion into the hot phase, a variety of projects carried out in full swing starts up.
Provincial government compound - rigorous practical guide
The provincial government in the province's public institutions play a saving work exemplary role, the Provincial Government Offices Administration recently completed a provincial government compound in some regions LED street lights energy saving.
As the particularity of the provincial government compound, application demonstration effect will be particularly evident, but it must be careful and rigorous. Management when the pilot from the metering tube portion saving rate of 64%.
Provincial Government Offices Administration of Li Qing, deputy director of introduction, the scope of reform, including provincial government compound street, a building and VIP rooms, as well as some of the provincial leadership office. Transformation process basically keep the original distribution equipment and lines, only to be replaced lamps, both to ensure the transformation effects, but also effectively control the cost of renovation. Renovation project is completed, a total replacement of LED energy saving lamps 496. New lighting more beautiful, the overall illumination by nearly 30%, while the average saving rate of 67%.
Deqing County - LED pioneer application
March 2009, Deqing County has begun implementing "LED lights and lighting industrialization demonstration project", which is Guangdong Province "thousand million" energy saving major science and technology projects, is the only one county-level demonstration zone. Currently, Deqing County, LED lights transform and lighting demonstration project has become a government foster strategic emerging industries important starting point for the application, and actively promote the full implementation of Zhaoqing city building green lighting demonstration.
Deqing County Technology Bureau Mo Show thinking proudly told reporters: "2012 LED county in the city to achieve full coverage of public lighting, objectives and tasks completed one year ahead, we just a mountain counties, to accomplish this task through many difficult , but the LED is a good thing, worthy of our painstaking efforts to promote our mountain counties can be a task well done, and no other place is certainly a problem. "
It is understood that a total of Deqing County, installed LED lights 6060, 1600 LED lights for indoor installation, landscape lighting engineering buildings more than 10 buildings with a total of 20.
Qingyuan City - makers courage
Qingyuan able to carry out a comprehensive LED retrofit project, thanks to the government's attention and decisive leadership decisions. Here much less like a pioneer as difficult Deqing County, from top to bottom, unite as one, smoothly. From August 2012 the city released the first LED street lights renovation project started bidding information, Qingyuan City began the overall advancement of LED street reconstruction project, established in accordance with provincial "implementation plan", Qingyuan urban transformation of traditional lamps totaling 46,000.
According Qingyuan Municipal Urban Management Bureau deputy director Zhu Yongqiang introduction, Qingyuan City, the overall transformation using energy management contract (EMC) + LED lighting products, mode of operation, through government procurement of open tender selected energy service companies and manufacturers, energy service companies, and once completed manufacturers tender, the lead unit for the energy services company, providing manufacturers with products, shortening the renovation project bidding time. LED lights has been the transformation of energy efficiency up to 55% or more.
Grandbuy Group - LED model for indoor applications
As a business leader, Guangzhou AnBai group in 2012 will be its respective industry segment LED energy-saving projects, unified into the "broad Hundred Group LED lighting demonstration project."
According Grandbuy Group introduced LED retrofit the entire project step by step forward depends Guangzhou Optical Valley service platform built. Has now been completed, including Xintiandi shopping Grandbuy sun, Grandbuy Dongshan store and Grandbuy Beijing Road, Tianhe EcoGreen shop, shop Grandbuy new city, new Dah Sing Beijing Road and other parts of floors, as well as some warehouses and other projects transformation, expected electricity savings of about 16 million yuan.
Among these, Guangzhou Optical Valley in the LED lighting retrofit demonstration project has played an important role. It is understood by the Guangzhou City, Guangzhou Optical Valley International Commodities Exhibition & Trade City building. Optical Valley Locate LED and lighting industry, will play the world's largest LED and lighting the whole industry chain professional exhibition and trade service platform, never ending International Lighting Trade Fair.
GS - illuminate the road home
Recent via GS owners, drivers have found a significant change on the GS, lights brighter, the road looks like as clear as daylight, and street light is very clear and clean, the whole road is bathed in clarity of white light. Reflective road signs are also against the background of colorful lights, people sincerely feel happy and warm.
It is responsible for GS LED lighting street reconstruction project Chau Ming, general manager Wang Rongli introduction, the GS LED lighting street reconstruction project has been started, the full range of 6280 to replace all traditional high pressure sodium lamp LED lighting products, which is following the "Guangdong Province promote the use of LED lighting products implementation plan "after the introduction of the first launch of LED lighting highway reconstruction project. The project uses the intelligent control system to replace the original 100WLED lights 250W (total power 300W) high pressure sodium, total 6280 renovation. It is estimated that in the case without intelligent control, high pressure sodium than the original 70% energy saving, light 10 hours a day, every day to save electricity up to 1256 degrees.
Currently, the GS has been completed in Guangzhou, Dongguan section of the LED street reconstruction is expected to be fully completed in the first half.
Trend is the development of LED is both practical needs
Road lighting system is every city indispensable infrastructures, in addition to the pursuit of the lighting system functionality and aesthetics, the higher electricity consumption caused by a large number of expenditure can not be ignored is a problem, therefore, achieve more energy saving lighting systems lighting is the future direction of development.
The future of lighting will certainly be dominated by green lighting, green lighting at this stage is the highest representative of LED lighting. Guangdong LED industry is the current development of strategic emerging industries is one of the three major breakthrough. In recent years, the province in planning and layout, capital investment, technology research, promotion and application of other aspects of a series of deployment, and promote the rapid growth of the LED industry scale, the province has not only become the vanguard of the development of strategic emerging industries, has become China's LED industry of course leader.
To develop LED lighting, both trends are also actual needs, but also an important technology benefits the country. Guangdong Province walking in the forefront of the country, played a good leading and exemplary role.
LED Six Advantages
Energy conservation: Energy saving lamp energy saving 4/5, LED street lights also saving than 1/4.
Safety and environmental protection: LED's operating voltage is low, mostly 1.4-3V. LED in the production process do not add the "Mercury", good impact resistance, shock resistance, unbreakable, easy to transport.
Long life: LED life generally in the 50,000-100,000 hours.
High luminous efficiency: LED luminous efficiency can be achieved through improved 50-200lm / w, and can be sent directly without filtering colored visible light.
Small: LED element is small.
Can better control the light spectral composition: LED can be well used in museums and exhibition of local or accent lighting.
More info you can visit: www.lead-lighting.com
The third generation of high-precision constant current LED driver isolation techniques
For LED lighting load characteristics of the current-isolated constant current drive power topology is basically Flyback (flyback) buck structure. This will isolate LED constant current control technology development is divided into three generations, to discuss control strategies to achieve the principle of constant development, analysis of the advantages and disadvantages of each generation, each generation what breakthrough progress. Shanghai-based company's DU8966 duty chip, introduced the latest generation of isolated closed loop current control technique, described in detail how groundbreaking this control strategy to improve 280w led high bay light output current accuracy, from open-loop to closed loop is the essence of the breakthrough.
Three isolated LED constant current control technology
All mentioned in this article are all based on isolated constant current driver Flyback (flyback) topology.
The first generation of isolated constant current drive technology:
The initial isolated constant current drive technology called SSR (Secondary Side Regulation), shown in Figure 1, a high-frequency transformer primary side, secondary side isolation, and use the optocoupler output current of the secondary side to the primary side feedback signal, to provide to the control chip, chip control output PWM duty cycle, and thus play a CV (Constant Voltage) and CC (Constant Current) role. Because the secondary side can use the precision voltage reference, and a real negative feedback, so this type of drive technology is a closed loop constant current control method can achieve high precision constant current.
SSR technology dominate the market for many years, but its surrounding optocoupler line the circuit becomes complicated, as the market develops, the isolation drive technology made new demands. Cost, size is a major consideration.
The second generation isolated constant current drive technology:
The last 10 years, one kind of AC / DC technology is widely used, this is what we often say that the PSR (Primary Side Regulation), PSR edge technology with the original sample and control to replace the primary side and the secondary side of the control sample, with the first generation SSR , the biggest advantage is omitted optocoupler, secondary side current sensing and voltage reference chip peripheral devices 431. This is a revolutionary advancement in Figure 2, because this technology saves system board space, reducing costs while increasing system reliability, for mobile phone charger and 280w led high bay light driver power supply so right volume demanding a deep wide market impact. Output current projection formula is as follows:
Ipk = Vcs / Rcs;
Ipks = N * Ipk;
Io = [Tons / (2 * Tsw)] * Ipks
= (N * Tons * Vcs) / (2 * Tsw * Rcs);
Ipk: primary peak current
Ipks: secondary side peak current
Io: The average output current
Tons: secondary side freewheeling diode conduction time
Tsw: switching cycles
Vcs: Chip galvanometer foot peak comparison site level
Rcs: primary-side current-sense resistor
From the above equation, we know that as long as the chip internally fixed a peak comparison level VCS, power system fixed turns ratio N, chip detects the secondary side freewheeling diode freewheeling through 0:00, and fixed Tons / TSW, you can guarantee Io fixed.
PSR technology compared to the SSR main advantage is greatly simplified lines, but it is an open-loop current control method, so current precision and SSR methods can not match.
The second generation PSR-isolated constant current drive technology, if you want to achieve the precision constant current, there are some technical difficulties, as follows:
Output current Io and secondary D 'about, you need to accurately set proportion chip for mass production of the chip, so there are some difficult high accuracy.
Is true zero crossing detection. Currently done 0:00 detection approach is "But first test + zero delay" to achieve, that is about to zero in the chip set before the comparison level. This is inaccurate.
Is and Ip, and if no closed loop Ip detection, how to achieve accurate current control?
Theoretically 280w led high bay light is an open loop control technique, open-loop current control, can not be closed as the current accuracy and dynamic response. From a development point of view, is still not an ultimate solution is to reduce costs, sacrificing performance transition program.
source from:www.lead-lighting.com
LED bulbs and lamps and lanterns of Europe and the United States requires interpretation of energy efficiency
LED light source as a new generation of energy-efficient lighting products, due to its energy saving, environmental protection, long life, environmental adaptability, etc., more and more countries have been the focus of attention. Currently, 60w LED high bay light source as costs decline more and more popular every country on the LED lights and LED lighting energy efficiency of detection is also put forward their own demands. This article on the major U.S. and European energy certification on the LED light source and lighting requirements to be a brief introduction.
European energy efficiency requirements
European energy efficiency requirements of the ErP mainly based on the requirements of the EU as a representative. ErP Directive and LVD Directive, EMC Directive, as has also been incorporated in the EU's CE system. Therefore related products must meet ErP requirements involved only after the product CE mark on the nameplate and a designated agency responsible for market surveillance, enforcement of the EU requirements. In lighting products, since 2009 the EU introduced for non-directional light sources (mainly halogen lamps, fluorescent lamps) of EC244/2009 and for fluorescent tubes, ballasts and luminaires composed accordingly EC245/2009 after December 2012 launched for all LED bulbs and directional light sources EU1194/2012, we focus on the following relevant requirements of LED lighting products to be brief introduction.
First, it is divided into three phases to achieve this requirement, the first stage is September 1, 2013, the second phase is September 1, 2014, the third stage is September 1, 2016. It requires compliance EU1194 range includes 60w LED high bay light source must meet the following requirements EEI:
According to regulations, each testing requirements are required to be 20 samples were averaged and forms required to do judgment. Throughout the test period of at least 6000 hours.
U.S. energy efficiency requirements
America's current LED bulbs and lamps energy efficiency requirements focused on LED lighting Lighting Facts label, Energy Star and DLC, they all belong to a voluntary request; Also in California, portable LED lamps on the need to meet the California EnergySpecial requests, this is a mandatory requirement. Are explained below:
Lighting Facts label energy efficiency requirements
It is the U.S. Department of Energy (DoE) announced the implementation of energy efficiency labeling, currently only for 60w LED high bay light products, which launched the purported "Give them the Facts", is to make the data more specific lighting products meet the requirements and higher reliability from the five aspects of telling customers that the product's performance parameters: initial lumen lm, the initial luminous efficiency lm / W, input power W, correlated color temperature CCT, CRI CRI. From October 2012 issued by the lighting facts request has added two optional indicators, namely the "quality assurance" and based on LM-80 and TM-21 test was the "lumen maintenance" targets.
Applicable range of LED lighting products are: AC mains or DC supply complete lamps, low voltage 12V AC or DC lighting, detachable power LED lamps, linear or modular products. NA LED lighting products are: solar or battery-powered LED lamps, limited length and shape of the LED lights and LED lamp panel. Lighting Facts label for energy efficiency testing laboratory qualification requirements, it must be an independent third party, and issued by the accredited laboratory test data and reports to be effective.Customers can then commissioned its own independent laboratory Register or go online to register to take effect. The registration fee is currently free.
source from :www.lead-lighting.com
Intelligent all-round light type "LED high bay light 120W"
For the full range of lighting, the U.S. Energy Star made a strict definition, namely: 0o-135o vertical angle in the range of light intensity changes should be gradual, in this interval the light intensity at any angle required in this interval average intensity value of 80% -120%, and at least 5% of the total luminous flux to be in between 135o-180o.Specifically shown in Fig.
Hong Kong Applied Science and Technology Research Institute (hereinafter referred to as: ASTRI) LED lighting R & D team to successfully apply for the Hong Kong Government's Innovation and Technology Support Programme for a period of eleven months of full light bulb type of research and development. In response to this issue, research team first conducted for existing products and technical research. Currently, many large international companies such as Philips, Osram, Panasonic, etc. have launched a 40W to 60W incandescent alternatives. Table 1 gives the major manufacturers 60W replacement bulb findings. In general, you want to replace 60W incandescent, LED's power needs at least more than 10W.
On the technical side, you want to replace the traditional incandescent, generally use two methods, one is the use of optical components such as lenses, mirrors, and diffuser, etc. to adjust the light-emitting pattern, thus producing a full range of light. Another one is the LED chip through three-dimensional arrangement of the chip in all directions so that the light intensity distribution. Here are two ways a few typical design:
Using the multi-angle reflection inventors foliage and uniformly distributed on a flat substrate with an LED for, so that the reflected orthogonal projection of the page on the substrate to cover the plurality of LED high bay light 120W. Thus, part of the light emitted by the chip can be projected to the reflective surface of the leaf, and then be reflected to the surrounding space, and the other portion of the light can pass through the foliage of the gap, emitted from above.
Describes a blister wrap structure of the radiator. LED light-emitting components are placed on top of the radiator, and was a capable all-round light refraction as a light diffuser hooded. Based on reducing light loss considerations, the design of the outer section made of transparent glass bulb.
A composite lens is used to achieve the beam divergence. This compound lens can be divided into three parts, one part is in the top of the central lens LED high bay light 120W source can be part of the light emitted divergence. The second part of the wing-shaped lens, the light is partially reflected to the lower bulb periphery. The third part is the bottom of the lens may be the surface of the light reflective shine to the periphery of the upper bulb.
Wherein one substrate is placed horizontally, placed above a number of LED elements. Another piece of the substrate is an annular structure, and the first block placed on the substrate at an angle. The outer annular substrate placed in a number of LED elements measured.Thus, the first LED provided on one substrate of the light source direction, the second substrate to the edges of the LED as a light source. So as to achieve the purpose of full light.
source from : www.lead-lighting.com
Shenzhen regulate led light pollution by the legislation
Shenzhen mayor hsu yesterday (6) chaired a meeting of the municipal government's executive meeting, the meeting principles through the "interim measures for the supervision and administration of shenzhen trading venues, provisions of this city is engaged in financial transactions, and all kinds of commodities trading contract agencies, as well as outside the pit in the city set up a supervision institutions for unified management, access management, determine the total amount control, the principle of prudent, reasonable layout of examination and approval.
Meeting also review and principles through the draft amendment to the "shenzhen city outdoor advertising management method", highlights the quality orientation, low carbon green orientation, for the convenience of service orientation and public interest orientation. Increased public land for installing outdoor advertising rights auction, and content of public welfare advertising, outdoor advertising in promoting shenzhen quality, simplify examination and approval, to provide quality services for key enterprises, emergency and early warning information released in a timely manner, improvement of LED high bay light pollution, etc, have made the relevant provisions.
source from :www.lead-lighting.com
Technical communication: the isolation of LED fluorescent lamp power supply options
Fluorescent power is divided into two major categories of isolated and non-isolated, isolated power supply isolation scheme advantage of his good stability, anti-interference ability sense, security is relatively easy to control, but the cost is relatively high, generally speaking isolated power output load range of 30-42V. Non-isolated power efficiency advantage is that he is easy to do high (above 90%), the overall heat a small, normal operation power devices (MOS pipe, power inductors, etc.) the temperature can be controlled at around 40, has done a relatively high power output adaptability strong, with load can range from 30-84V. Select the number of LED high bay lights manufacturers in the power supply when the overall adaptability are required in order to adapt to the full voltage power supply 90-265V input, load range requirements up to 84V, so the choice is there are certain risks and hazards. This is a lot of power supply manufacturers overlooked a problem, claiming full voltage input. Prevalent in the market today are mostly non-isolated solutions Active PFC PSR program, such programs are mostly buck topology (BUCK), a typical scenario for the (Si Cenda, green up). The other is passive PFC solutions, such programs also for the buck topology (BUCK), a typical scenario is (Jing Feng, duty cycle).BUCK circuit is a step-down chopper circuit, the average output voltage Uo buck topology is always less than the average input voltage Ui, usually have continuous current through the inductor, depending on the switching frequency, the filter inductor and capacitor. Typically require relatively BUCK circuit output voltage and the input voltage has a certain pressure, usually require more than 30V, that in order to make full voltage 90-265V input, 55V output voltage requirements in the following, otherwise there will only be lighting, electrical parameters such as abnormal security risks.
The following selected two typical parameters do comparison, we can clearly see. Experiment chose two different companies supply an as **** technology, another one is a larger market volume company.
Experimental one, as **** Ltd. T002 series, nominal operating range of AC :160-265V DC :30-84V Imax = 270mA, the following experiments the normal operating voltage range input for non-state
Experiment ⅠTest Record Sheet These test data table it is clear that, when the power supply load is 76V (24 strings), the input voltage is 90-110V time, THD, current and other parameters have a very significant volatility, 90V input when the power constant loss of function, with a difference of nearly normal operating current 70mA, harmonic currents as high as 40.51%, on the whole effect of light lumens have a dramatic effect.
Whether it is because of the design aspects of the factors leading to the phenomenon? The experiment also found a large market share in the power of similar parameters, programs for the BUCK circuit with the power supply nominal operating range of AC :90-265V DC :30-84V Imax = 280mA, nominal operating power for the second experimentwithin the scope of the test data
Experiment II Test data From the measured data is also very clear that the power supply in response to a load of 82V (24 strings), the input voltage of 90-110V also exists when an experiment mentioned risks, if some of the power supply manufacturers in order to reduce costs, the inductor using EPC13, there is high temperature after core saturation and other safety hazards.
Such BUCK circuit in the end what kind of circumstances can truly meet the full voltage input it? Experiment III as **** Technology T002B series, nominal operating range of AC :90-265V DC :30-52V Imax = 330mA
Experiment Ⅲ Test data As can be seen from the above experiment, when the load voltage is 52V, when the power supply to the full voltage range, the parameters to achieve the required value.
Through the above three experiments can be drawn, in the choice of non-isolated power supply, the first thing you should ask is what kind of power supply manufacturers that supply the program, if the program will have to buck BUCK carefully selected voltage input when required to do all the time certain requirements with load voltage and the minimum input voltage is greater than 30V voltage difference, since some lighting companies lack of experience in the power test, resulting in a look at whether the light, do not look at the chaos in electrical parameters, resulting in a certain time delivery Clients frequently appears after power corrupt adverse effects. In this appeal to all the LED high bay lights industry practitioners can uphold the principle of quality first, the real advantages of LED energy-saving, and ultimately promote the healthy and sustainable development for the benefit of society!
More info you can visit: www.lead-lighting.com
2013年6月12日星期三
We are meeting a kind of LED light new material for Warm light
As we all know, LED (light emitting diode) lights energy efficient and longer life expectancy, but due to the current LED high bay lights with light blue Designed based, which has hindered its indoor lighting field spread.
Today, the University of Georgia scientists have developed is said to be the world's first use of a single fluorescent powder and a single light-emitting unit warm white LED lights. For this material details of the papers published in "Nature" Publishing Group, the latest issue of "Light Science and Applications" journal.
Author of the paper, University of Georgia professor Pan Zhengwei (sound), said: "At present, the white LED high bay lights is mainly used in flash and auto headlamps, but they emit blue luminescence is not liked, especially in the field of interior lighting our material reaches warm, while for realistic color reproduction. previously using a single fluorescent powder improved LED lights failed to achieve this effect. "
Pan Zhengwei said that the measure of artificial light quality has two main targets. Correlated Color Temperature is a measure of light heating. For indoor lighting, the color temperature is lower than 4000K (Kelvin) is ideal, but correlated color temperature higher than 5000K, the light emitting device emits white LED as light blue luminescence. Another important indicator is the color reproduction, namely light simulating natural light capabilities. Reduction degree of 80 or more for interior lighting is ideal, below this value the color will look distorted.
Pan Zhengwei and his colleagues developed the material to meet these two conditions, correlated color temperature was controlled at 4000K or less, while color reproduction up to 85.
Pan Zhengwei said, giving the blue LED chip outer painted a different color phosphors can emit warm white light, so will be able to make to the phosphor-based white LED high bay lights. However, these raw materials in accordance with the precise percentage ratio up laborious and expensive, and ultimately produce a light color will be different, because each raw material to temperature change reactions are not the same.
More info you can visit:www.lead-lighting.com
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