Study desk lamp high-power led is more appropriate
Preferred the desk lamp of dc, because traditional 220 v ac 50 hz residual current fluctua...
I am doing an LED desk lamp,
With photosensitive components after sampling the operational amplifier amplification, the...
General led desk lamp how much a led lamp is usually how many watts
Also suggested that the lamp choose warm white color temperature (3000 k), or natural whit...
There are several major disadvantages of LED lamps
Poor work LED the lamp that shield an eye will produce slight stroboscopic and radiation...
How long does a charging lamp charge?
Charging commonly 4 hours is full of, but don't always keep filling. Because the battery w...
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