... and low price 4.more 10 factory experience HW5Y-2 Photosensitive Sensor In order to adapt the market environmental protection request, our ... 5.the uniformity good, 6.match ROHS standard.Wide application : in the solar energy lamp, the light controls lamp, the light ... switch, the small night light, the photograph prime product.Uses in adjusting the background light, like LCD monitor, television, PDA, ...