ZITRADES(TM) 5PCS E27 to E27 Light Lamp Bulb Socket Y Shape 2 Splitter Convertor E27 to E27 Base Screw Cap Light Bulb Converter 2 Splitter As a converter socket lamp holder,you will find it is pratical at home.Suitable for all volage Attention: Halogen bulbs is not available using on this Socket.Only for LED bulb.