... Φ180mm Cut Hole Φ95mm, Φ135mm, Φ165mm Surface Color white/black Shell Material Aluminum+aluminum alloy+ISB plastic Beam Angle 65° Ingress ... Cree,Edison,different chips with different price Showroom LED Ceiling Lamp Application:Indoor ceiling in the office,house,exhibition,museum, ... aisle,hall,etc Showroom LED Ceiling Lamp Features:1.Long life span2.High power multi-chip ...