Double E27 Socket Adapter, Y Adapter, Screw Adapter, Plastic, 1 x E27 Socket to 2 x E27 Sockets, Max 40 W per Base : Amazon.com.be: Tools & Home Improvement
1PC Screw E27 LED Lamp Base Light Y Shape Bulb Socket White Converter Saving Splitter Adapter Lamp Holder Lighting Accessories - AliExpress