Material: flame retardant PBT + conductive sheetsSize: 16 * 16 * 16cm/6.30"*6.30"*6.30"Features: one E27 screw divide into three E27 screwUse: For road lights、 chandeliers、 factories、 warehouses、 increase light of photography、 etc.Package included:1 * three in one E27 lamp holder