... 2.No-radiation 3.long brightness 4.Excellent color rendering high power led optical lens1.processing:by design , molding , griding, polishing ... life:50000hrs. 5.Demensions:diameter ,high ,edge thickness . 6.Application:street lights, tunnel lamps ,spotlight, flashlight ect . 7.Inside ... Function: Guide of the light beams, LED light beams low price, high quality with short lead time Energy saving ...