In the early 1990s, LED for cars and trucks brake lights. Some LED design soon emerged inconsistencies performance indicators, and quickly burned down, the reason may be due to the LED quality problems, perhaps the design of the product itself is entirely the problem. Until recently, in respect traffic lights, when the LED light source to become more appropriate, this phenomenon was only seriously. Design covered with a diameter of 8 inches or LED 12-inch PCB companies must choose the LED and improve the design and other aspects to consider environmental and application needs.
Any of the above circumstances, if the pressure test or accelerated life cycle tests have been done, it can be considered high-quality LED or LED assembly is qualified, it can be applied to a longer life and higher reliability occasions it.
Not every application requires high quality LED assembly technology. If the LED assembly does not meet the requirements of harsh environments, the application will not necessarily a larger security risk, or, if the final product is not very high maintenance costs, the use of some poor assembly techniques may be more appropriate.
The most fundamental point is the LED must be able to afford. Therefore, within the limits of the cost requirements, we must consider the level of vendor product packaging, assembly and testing of design experience and other factors. Meet the application and market demand is designed to serve the end user the most effective means. If the application requires high-end solution, then the chip vendor selection, design experience, and testing are all factors to be considered. If you do not consider the high-end product sales price, you should carefully consider the difference between good and bad LED and other relevant factors. Have the ability to classify the packaging level LED suppliers, and the ability to carry out reliability, accelerated life cycle testing vendors be able to conduct long-term cooperation, which helps manufacturers to adopt a more reliable LED develop high-end products.