CCC,CE,FCC,ISO9001,UL 2.Long service life:60000h 3.Power: 20w,30w,40w,50w,85w,135w,165w,200w 4.Voltage: 110V /220V /277 Advantages·super long service life·high-efficiency and energy-saving·green and environmental-protection·excellent color rendering·optional color temperature·have no strobe·little light evanescence·instant-on and restart·large range of working temperature·good performance of ...