Led bulb light life a few years
LED in general notes, can be used more than 50000 hours, and some manufacturers to promote the LED can work about 100000 hours. The main problem is that the LED is not simple to operate, no longer its extra utilizing life cannot use traditional lamps and lanterns of measure method to calculate. In fact, when used in testing the LED life, no one will always stay beside waiting for it to suspend operations. Still, there are other methods to measure the LED use life. Leds are durable because it won't produce filament fuse problem. LED does not directly suspend operation, but it will gradually degraded with the passing of time. Is marked by speculation, and high quality LED through after 50000 hours of continuous operation, also can maintain more than 60% of the initial degree of the light. Assume that LED has reached its extra use life, in fact, it may still be hair light, but light is very weak.
ACT)
About 30% of the street lamp has been replaced with energy saving LED lights.
can directly replace the existing same E27, E14, GU10 and B22 interface of energy-saving lamps and bulbs products, usually don't have to do any change, don't need any technician or professionals, with detailed read let's use of instructions, DIY can easily implement from general lighting replacement LED lighting.
Now to explain for you!
a, principle limit
radar sensor LED bulb light is the doppler radar induction principle, can wear non-metallic objects, common board, gypsum board, glass can penetrate, radar sensor signal can penetrate through the wall, even invisible installation effect, but the metal objects can block radar signal, technical principle limit do not use a metal shell.
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