Reality problem: LED lights don't last long Although LED lighting has the characteristics of energy saving, environmental protection, long life, easy control, and maintenance-free, it is ironic that we often hear that the LED lighting power supply itself directly drags down the LED lighting fixtures and does not live long. Increased maintenance/use cost; or the inefficient efficiency of the drive power causes the energy conversion ratio of the LED lighting fixture to be not as high as expected, or because the output current ripple is not well controlled, which affects the illumination quality, making the LED illumination The advantages of green energy conservation have been greatly reduced, and even affected the popularity of the market. How to predict LED life? Everything has a process of occurrence, development and demise. Although LEDs have a relatively long life compared to general light-emitting devices, they also have a certain life span. The early LEDs were just gifts such as flashlights and desk lamps. The time spent was not long and the life problem was not outstanding. But now LEDs have begun to be widely used in outdoor and indoor lighting, especially high-power LED street lights, which have high power, high heat, long working hours, and long life problems. In theory, it can last for 100,000 hours, but it is actually unknown. So where is the problem? If the failure of the power supply and the drive is not considered, the life of the LED is manifested by its light decay, that is, the time is long, and the brightness becomes darker and darker until it is finally extinguished. A time of 30% attenuation is usually defined as its lifetime. So can the life of LEDs be predicted? Garment Lining,Garment Shell,Lining Knitted Garments,Garment Shell And Lining ZHEJIANG HUIDE NEW MATERIAL CO.,LTD , https://www.zjhuide-microfiber.com
December 10, 2020