HQTek 6 Pack GU10 to E26/E27 Transforming Adapter, led Converter, socket changer, converter (6pc-GU10-E27) 6 pcs GU10 to E26/E27 lamp adapter/ converter per package Body Material: Flame Retardant PBT; HIGH HEAT RESISTANCE UPTO 220 DEGREE Contact material: Copper Size: 65mm*33mm(lheight*diameter) Approved by CE & RoHS, 2 years warranty