Procelain lamp holder: 1. E14, E26, E27, E39, E40 series 2. Certification: VDE, CQC.ISO,RoHS 3. OEM is available. 1. Product name: procelain lamp holder E27 F519B.172. Certificate: VDE,CQC, ISO,RoHS3. Rated at 4A 500V 1.5KV Glazed porcelain body Iron screw shell Copper center contact4. Main material: procelain5. Metal: iron, copper, aluminum alloy, brass6. Contact type: Screw styleWire diameter=< ...