E26 Light Bulb Socket to AC Wall Outlet Plug Adapter On/Off Switch, 12 FT Cord - $7.48 - JacobsParts Inc
Slit lamp adapter for Optomed Aurora IQ - Optomed US
Light Bulb Adapter for Antique Floor Lamp Mogul Socket [Misc.] - Mogul To Medium Adapter - Amazon.com
65mm 95mm 120mm E27 to E27 Extender Lamp Holder Base Bulb Extend Extension Socket Adapter LED Light Adapter Converter|Lamp Bases| - AliExpress
E26/E27 to G24 Base Bulb Lamp Adapter Converter
Lamp Plug Adapter - Saratoga Organics and Hydroponic Supply Store in NY
4pcs HID G12 to E26/E27 Light Socket Adapter Halogen G12 Lamp Base to Standard Medium E26 E27 Lamp Holder Converter: Amazon.com: Tools & Home Improvement
Adamax GU24 to Medium Base (GU24 to E26) Light Bulb Adapter A2426E - The Home Depot
LED Light Bulb Lamp Socket Adapter Convert E27 Base To Regular U S/EU Plug | eBay