... :1)High quality CREE/Epistar/Guanghong LED Chip, high light efficiency,low temperature,high CRI2)Constant current isolation power,light spread material, above ... radiation5)Envirenment friendly, don't have mercury(Hg).6)Direct current drive, no stroboscopic, protect eyesight.7)small light decline ,high ... with waterproof luminaire3. Corridors/Stairway, lobby/ Reception areas etc Waterproof LED Par38