Edison style light bulb E27 White Porcelain fitting
Light bulb fittings plastic lamp holder E26 & E27
E27 Light Bulb Holder Base Fitting ES Edison Screw Cap Socket White Lamp Fixing. | eBay
B22 to E27 Adaptor,Bayonet BC Cap B22 To E27 ES Edison Screw Light Bulb Lamp Base Socket Converter [Indoor Use]Extender Adaptor Holder Fitting 220-240V B22 to E27 Lamp Socket Converter[5 Pack] :