Our E26 Porcelain / Ceramic Lamp Holder with wire is with good quality and reasonable price. E26 Porcelain / Ceramic Lamp Holder with wireSpecifications:1 Porcelain Crust: Normal porcelain2 Metal Parts: copper with nickle plating / Aluminum ecru3 Size: H35mm X Dia.32mm4 Standard: IEC5 Certification: CQC(3C) / UL / VDE / CE / EK E26 Porcelain / Ceramic Lamp Holder with Wire