In general, in particular the high-power LED light in the initial phase of the light, there will be some attenuation, LED packaging plant in order to provide the client application to the stability of the light-emitting products manufacturer, or client application vendors in order to obtain a stable home LED materials, usually Will do some aging test. LED aging test, of course, there are a variety of ways, such as conventional aging, over-current destructive impact test, and so on.

LED manufacturers usually use the following approach Orders of aging:

1, multiple tube aging series: constant voltage and constant current circuit aging aging circuit

2, multiple parallel tube aging

3, multiple series and parallel tube aging: string and the string of aging and constant pressure and constant current aging

4, single-tube current aging

Comparison of aging means more than 4, 1, 3 kinds of ways as long as there is an emergence of the quality of LED failure, such as the LED short-circuit or open circuit will affect the work of other LED current parameters. No. 2 seed ways better than 1,3, and the characteristics of an LED changes will not affect the other parameters of LED aging, but by limiting the resistance is unreliable, their resistance and resistance drift own LED voltage Will be severely affected by changes in the characteristics of LED parameters. It is clear that the first one-tube 4 to seize the current aging characteristics of the LED current work is the most scientific way of LED aging.

During the trial the aging process should be a very important process, but many companies tend to be ignored, can not be effective in the right age, in the face after the LED itself by including the brightness, wavelength, etc. All of the parameters of analysis will be uncertain. Over-current impact of the aging factory is also frequently used as a means of aging, often using adjustable frequency, the current cycle adjustable and adjustable current source of such aging in order to look forward to a short period of time to judge the quality of LED and is expected to Life.