E40 Procelain lamp holder Contact type: Screw E27/receptable syle main material: porcelain E40 Procelain lamp holderProduct NameProcelain Lamp HolderVoltage250V-750VElectric Current4A-16Awire0.75m²,0.55m²metal:copper, Iron, Aluminum Main material ceramic, high pressure Contact Screw 40, receptable style Certificate CE Porcelain Lamp Holder