The Porcelain Holder E27 offers a secure and efficient solution for installing E27 base bulbs. Specification: Socket Type: E27 Screw-type Bulb Material: High-quality Porcelain Voltage: AC 220-240V, 50Hz Application: Ideal for residential, commercial, and industrial settings, the Porcelain Holder E27 is suitable for lamps, pendants, ceiling fixtures, and more.