LED lamp aging test

　　 After the production of LED lamps, dim light, flickering, malfunction, intermittent lighting, etc. often appear, making the LED lamps not as long as the expected service life, which affects the quality of the LED products. There are probably two reasons for the above phenomenon of LED. They are:

　　 1. When using LEDs to make products, there are problems with the soldering process, such as too high soldering temperature, too long soldering time, and failure to prevent static electricity. These are caused by imperfect management in the LED packaging process.

　　 2. The quality of the LED itself or the poor quality of the LED caused by the manufacturing process.

　　 In order to prevent the quality of LEDs from causing damage to the LED lamps, or to prevent the LED lamps from being damaged during the packaging process, we generally take two preventive measures. It is to do a good job in the control of the welding manufacturing process and the aging test of the LED products. The aging test is often overlooked, but the aging test of LED products is an important measure to ensure the reliability of electronic products, and it is the last essential step in product production.

　　LED products can improve performance after aging, and contribute to stable performance in later use. LED aging test is a countermeasure taken according to the characteristics of the product failure rate curve, that is, the bathtub curve, to improve the reliability of the product, but this method is not necessary, because the aging test sacrifices the life of a single LED product At the cost.

　　LED aging test includes two methods: constant current aging and constant voltage aging.

Constant current aging is the most scientific LED aging method that best meets the working characteristics of LED current: overcurrent impact aging is also the latest one adopted by manufacturers

A kind of aging method, through the use of a constant current source with adjustable frequency and adjustable current for such aging, in order to judge the quality and expected life of the LED in a short time

Life, and can pick out many hidden dangers that cannot be picked out by conventional aging. Effectively prevent individual LEDs in LED products from being shoddy