2014年3月11日星期二

Experts Weapon : LED life how to predict

 Life LED products can predict it? Xiaobian tell you, even though LED lighting with energy saving, environmental protection, long life, easy to control, maintenance , etc. , but the irony is that we often heard the LED drive power of life itself becomes a direct drag on LED lighting not "longevity " greatly increased maintenance / cost ; or drive efficiency is not high power LED lighting leads to energy efficiency conversion ratio is not quite so high , or because the output current ripple is not well controlled affect the luminous quality , making green energy-saving advantages of LED lighting greatly reduced , and even affect the market penetration .
Everything has happened , development and demise of the process, although compared to the average light-emitting devices , led strip life is relatively long, but also have a certain life . Early LED just flashlights, lamp kind of gift , not a long time with a life problem is not prominent. But now LED has begun to be widely used among outdoor and indoor lighting , especially in high-power LED lights, its power, heat , long working hours, life issues will be very prominent. Theoretically be 100,000 hours of life, but in fact it can not be conceivable , then in the end the problem is where?
If you do not consider the failure of the power supply and driver ,flexible led strip lifetime performance for its light failure , which is a long time, the brightness is getting darker , until finally extinguished. Attenuation is usually defined as 30% of its life time .

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