ALUCSET 3 Pack Medium Screw Base to Medium Base Light Bulb Socket Porcelain Extender, E26 E27 to E26 E27 Lamp Bulb Socket Extension Adapter, (Set of 3, Porcelain E26 Extender): Amazon.com: Tools
10x MR16 Lamp Socket to E27 Screw Thread LED Bulb Base Converter Adapter Holder | eBay
EMNOOTI Metal Table Lamp Base,Standard E26 E27 Socket for Incandescent LED CFL Halogen Light Bulb,with in-line ON/Off Switch,Holding Medimun Screw Base Light Bulb on Desktop - - Amazon.com
B22/E14/E27/E12/E17/GU10 Lamp Base Socket Adapter Converter Holder For LED Light | eBay
E26/E27 to E26/E27 Lamp Bulb Socket Extender Adapter
E27 Light Bulb Base Socket Ceramic Edison Screw ES Cap Heat Lamp Holder Fitting | eBay
Construction E27 Lamp Holder Ceramic Porcelain Lamp 1000W E.g. for Terrariums 4260499690816 | eBay
E-Simpo B22 to E26 E27 Light Socket Adapter, UK AU India Bayonet Lamp Base to Edison Screw E26 E27 Bulb Holder Converter Adapter CE Rohs (4) - - Amazon.com