How long is the life of LED light such as the high power LED flood light
Energy saving, environmental protection, long life are three advantages of T8 LED lighting products especially the high power t5 LED flood light have been advertising, as the third generation of LED light-emitting principle of semiconductor lighting，energy conservation and environmental protection is certain, LED products such as the high power LED flood lighthave been relying on compliance with the ” low-energy ” that is global environmental protection requirements for now , and gradually conquer the market , but for long life, most of us have been doubting.
Why high power LED flood light and other LED lighting product damage is generally mainly the power , in fact, there is no big problem with the chip, but light decay is inevitable. What the general description of LED light is that all of it can be used for more than 50,000 hours , and some manufacturers claim that their LED can operate 100,000 hours. But most of the shelf life of LED products including the high power LED flood light is less than 1 year on the market , if the T8 LED tube light keep on being used within the specified time, then there is no more than 8000 hours , even the not to fifth of the standard life. Perhaps indeed the life of LED products especially the high power LED flood light is longer than traditional lamps , but how long in the end does not seem to have a clear answer.
Rated life of LED lamps can not be measured to calculate by conventional methods. When testing LED life, no one has been waiting for it stop functioning. So legendary 50,000 hours of T8 LED products is just experiment estimated value. why LED light particularly the high power LED flood light is lasting is because that it does not produce the problem of filament fuse . Although LED do not directly stop working , but it will gradually degrade. It is predicted that high-quality LED light maintain more than 60% of the initial light intensity after continuously operating for 50,000 hours. Assumption that LED has reached its rated life , in fact it may still be light, but the light is very weak. it is necessary to reduce or completely dissipate the heat generated by the LED chip to extend the service life of LED. Heat is the main reason for why the LED stops functioning. the 50000 hours is when the high power LED flood light and other is operating in theoretically absolute environment , due to too much influence outside， the actual life can only be estimated by simulating conditions worsen . There are many uncontrollable reasons by the environment for the practical application， such as drive current stability of high power LED flood light and other LED light , transient currents impact , the environment and thermal material the LED light is in and using so that the LED life is significantly reduced.