How to ensure the quality of LED lighting

Most designers think the quality of all LED products are the same. However, LED manufacturers and suppliers of a number of Asian manufacturers to global supply of low-cost LED. Surprisingly, in which manufacturers can produce only a small part of the high-quality LED. For just as a simple application indicating function, low quality LED is sufficient to meet the requirements. However, in many of the requirements consistency, reliability, solid state lighting, and other areas of instruction or must use high-quality LED, especially in harsh environments, such as highways, military / aerospace, and industrial applications.

How to distinguish between high and low quality LED lighting? In fact, choosing high-quality LED lamps can be started from the chip until the assembly is complete, during which there are many factors to consider. Tier-ONeLED lighting manufacturing company to produce excellent and consistent indicator of wafers from high-quality LED lighting manufacturers starting material, and thus can produce an excellent chip. In determining performance metrics for all LED lamps conditions, chemical materials used in the wafer production process is very important factor. A 2 inches wafer can cut a plurality of chips 6000 LED lamps, there is only individual performance and the overall chip is different. And a good chip manufacturers produce chips in the color, brightness and other aspects of the voltage drop is very small difference. When the LED lighting chip package is completed, many of their performance is likely there is a big difference, such as perspective. In additional, the impact of packaging materials is quite large, for example, silicone is better than the performance of the epoxy resin.

Excellent LED lighting manufacturers not only can create high-quality chips, but also has the ability, depending on the color of LED lighting, brightness, voltage drop and perspective and its classification packaging. High quality LED lighting vendors to provide customers with a consistent operating characteristics of the product, while lower-quality LED lighting supplier can only offer similar to the "mix" of LED lamps. For strict quality requirements of high-end applications, such as the boundary of the airport runway lights, must meet FAA specifications color and brightness level, to ensure the performance and safety, LED lighting package consistency is strictly limited. Packing poor LED lamps are used in demanding applications will lead to failure and a series of non-conformance problems occur prematurely, most likely lead to a major accident. To avoid equipment downtime and ensure that the design specified in LED lamps have a reliable operating characteristics, avoid the use of high-end and quality demanding applications "mixed" product is very important.

With the rapid growth in demand for LED lighting, global services market, manufacturers and assembly plants also increase rapidly. however, the surge in support for a large number of manufacturers not only low-quality LED lamps, LED lamps and their packaging design engineers relative lack of experience. Therefore, in additional to accurately screened by the existing experience of LED lamps outside suppliers, OEM manufacturers must also examine their circuit design and assembly technology is designed to ensure that it meets specifications, and design to provide sufficient cooling capacity, because the cause of LED lighting failure the main factors and performance is inconsistent overheating. To ensure that meet the design requirements, OEM assembly and circuit structures must be detected LED lamps.

In order to eliminate the injustices that exist in the test, many companies have commissioned a third party to assemble and test the circuit configuration of LED lamps. An LED lighting device may be tested or used for several weeks in harsh environments. During the test, while the pressure, temperature cycling, fixed / changes the voltage, current fixed / change test, testing to other harsh environmental conditions to determine whether the LED lamps meet the application requirements. Large number of parameters to be changed before and after the test are recorded, while monitoring the measured LED lighting brightness, color, and the voltage drop variation.