... -span, 3,competitive price high power led bulb 1,led bulb with hight brightness led chip 2,low-light decline .long ... test Lifespan: 50, 000 hours No UV and IR radiation Application LED bulb is widely used in large-scale public places ... +PMMAAluminum+PMMAColor temperature5,500-6,500k2,700-3,500kSingle led power1W1WLED quantity5pcs5pcsView angle30 degree 30 degreelifespan50,000H50,000HInput voltage85- ...