INTIRILIFE 4X Bulb Socket Adapter E14 to G9 in White – 4 Piece Set Reformation Converter for Lamp Carrier for Light Bulbs, LED, Halogen, Energy Saving Lamp : Amazon.co.uk: Lighting
B22 Bayonet to Edison E27 Screw Type Bulb/Lamp/Light Socket Converter
YUNYANZE 2 Pcs Electric Light Lamp Holder E14 Bulb Light Lamp Holder Socket Pendant Socket Lampshade Ring for Most Light Bulbs : Amazon.co.uk: Lighting
1x E27 Screw UK Plug In Light Bulb Kit E27 Lamp Fitting Switch Socket Holder UK | eBay