Leviton 660-Watt Keyless Twin-Socket Lamp Holder Adapter R52-00128-00W - The Home Depot
Brightech Halo Split 72 in. Silver LED Torchiere Floor Lamp S9-JQSV-IXQQ - The Home Depot
8T8 5 in 1 E26 Light Bulb Socket Splitter Converter Adapter 360 Degree Adjustable I Stardand LED Lamp Base Holder, Each Port 60 Watt, Total 300 Watt - - Amazon.com
Split P Gold Pendant Lamp : Target
Slit Lamp Camera Adapter SET for Zeiss Type SLit Lamp
2 in 1 E27 Lamp Socket Splitter Adapter Light Double Holder Y Base Bulb M3T7 | eBay
Grey Concrete Black Cap Split Pendant Lamp by Dror Kaspi for Ardoma Studio for sale at Pamono
2 in 1 E27 Lamp Socket Splitter Adapter Light Double Holder Y Base Bulb M3T7 | eBay
Atlas Split Table Lamp by Jonathan Adler at Lumens.com