... ring color: W,SN,GD etc Size: 4" ,6",8" Square recessed downlight with angiglass(CE,ROHS approved)The aluminum ring ... special technical process, which makes it strongly oxidation resistant with high reflectivity.2. The light frame is made of imported 0 ... .4. The E27 ceramic holder is fairly endurable for extremely high temperature, which guaranteesthe safety and durability of the lights. Applicable ...