CliCli E26 Standard Medium Base Light Bulb Socket Extender (Extension: 3 CM/1.18 Inch), E26 to E26 Socket Extension Adapter, Max 60W and 160℃ Heat-Resistant Medium E26 Screw Base Adapter (6-Pack) - - Amazon.com
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
E26 to E26 Socket Extender,TWDRTDD E27/E26 to E27/E26 Lamp Holder Adapter (3Pack) - - Amazon.com
CliCli E26 Standard Medium Base Light Bulb Socket Extender (Extension: 3 CM/1.18 Inch), E26 to E26 Socket Extension Adapter, Max 60W and 160℃ Heat-Resistant Medium E26 Screw Base Adapter (6-Pack) - - Amazon.com
3-in-1 E26/E27 2 Spotlight Socket Splitter and 110V 2-Prong Outlet Ada – Nuvending.com
DiCUNO E26 Socket Extender, E26 to E26 Standard Medium Base, 6.5CM/2.56 Inch Extension Socket Adapter, Max 200W Light Bulb Extender 6 Pcs - - Amazon.com
CliCli 2-Pack E26/E27 to E26/E27 Bulb Socket Extender, 15 CM/5.9 Inch Light Bulb Extension, Bendable Standard Medium E26 Screw Base Extender Adapter - - Amazon.com
DiCUNO E26 Socket Extender, E26 to E26 Standard Medium Base Lamp Bulb Socket Adapter of 5CM/1.97 Inch Extension, Max 200W Light Bulb Extender 2 Pcs - - Amazon.com
Smart Home Powercube 4 Outlets Power Strip Switch Socket Extension Adapter Socket - Electrical Socket & Plugs Adaptors - AliExpress