Lampo Adapter From E27 To E27 Extension Lampholder Converter
LED Light Bulb Lamp Socket Adapter Convert E27 Base To Regular U S/EU Plug | eBay
Ceramic E40 E27 Converter | Adapter Lamp Base E40 E27 | Light Bulb Base Adapters - E40 - Aliexpress
Superdream E12 to E26/E27 Adapter - Chandelier Socket (E12) to Medium Socket (E26/E27) Converter, Max Wattage 1000W, 200℃ Heat Resistant, No Fire Hazard (10-Pack) - - Amazon.com
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
10pcs G4 Pin Socket to E27 Thread Light Bulb LED Lamp Holder Adapter Converter | eBay
LED Light Bulb Lamp Socket Adapter Convert E27 Base To Regular U S/EU Plug | eBay