The basic authentication methods of LED lighting products

For basic authentication method LED products are: environmental testing to verify, validate product life.
1 environmental testing to verify

First, we must make a life-contour analysis designed for their own products, the product life cycle that may be stored at ambient? Why user? This product attributes? Products without other special requirements? led street lighting Manufacturer may affect the future are standard tests, in the process not to fall into the norms of lost, because a good validation of specifications is definitely not completely copied from a thorough specification into, because even the best can not be standardized simulate the actual environmental needs, it is just useless and will only waste more resources and costs For example:. LED lighting designers to design a street lamp to street use in Indonesia, and to develop a low temperature -40 ℃ to verify specifications, and very happy to do so, because the IEC in the proposed low temperature is -40 ℃. But please recall that Indonesia is located near the equator, has a tropical climate, hot and humid all year round, how come -40 ℃ 's climate? Therefore, for an everlasting environment do not touch the product design , design costs will only increase as the cost of the design can withstand -40 ℃ ambient LED lighting must be designed to withstand the environment is higher than 0 ℃ 's.

It is a product designer should please return to fundamentals, a good view of their own designed products in order to achieve an efficiency can meet reliability verify the actual demand side.

Finally, because the LED product is different from other electronic products, before and after the verification must be done regardless of the reliability of measurement for their luminescent properties, commonly used calculus curve balls or light meter, to measure the color of LED products (Color temperature), the flux (Luminous flux), light intensity (Luminous intensity), color coordinates (Chromaticity coordinates), CRI (Color rendering), wavelength (Wave length), etc., in order to verify the reliability as a basis for judging the results.

2 Verify that the product life

In the electronics industry, in order to obtain the product requirements of life, often using three methods

(1) life prediction method (Prediction)

Methods: According MILHDBK217 the parts count method (Partcount) principles and Parts Stress Method (Partstress), using the software to calculate the life of the product.

Advantages: Short time-consuming, low cost

Disadvantages: The result is easy and practical differences in product life far (2) Measured Life Act (Demonstration)

Methods: acceleration model (AccELeration model), calculated acceleration factor (Acceleration factor) and provide led street lighting Manufacturer using environmental testing simulator measured the samples in order to achieve product life Currently Arrhenius acceleration model to model (high temperature accelerated), Coffin-Manson model. (temperature cycle acceleration) and Hallberg-Peck (humidity acceleration) with the highest degree.

Pros: The results compared with the estimated true law, the industry accepted high

Disadvantages: high cost and time-consuming method than the estimated length

(3) market feedback Act (Field return)

Methods: The recovery of the product user position on the market use.

Pros: the result is equal real life

Disadvantages: time and cost more, the market situation is difficult to obtain using usually only brand of self-preservation field

These three methods to obtain the product life of up to life measurement method adopted by the industry because it eliminates not only produce results and the actual gap is too big drawbacks, and it is obtained through the measurement, regardless of the buyer and seller to accept a high degree of both.

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