Leviton 660-Watt White Slimline Base Single Pin Pedestal Slide-On Lock-On Plunger Standard Fluorescent Lampholder 2536 - The Home Depot
GE 2-Pack White Lamp holder in the Fluorescent Lighting Parts & Accessories department at Lowes.com
Light Bulb Socket Adapter Eu | E27 E27 Lamp Base Led Lamp | E27 Adapter Socket Eu Plug - Lamp Bases - Aliexpress
Linear Fluorescent Lampholder, Medium Base, T8-T12 Bi-Pin, White, 1365 – Leviton
Philips Low Profile Tombstone Medium Bi-Pin T8/T12 Fluorescent Lampholder (2-Pack) - Taylor's Do it Center
Tanning Bed Parts Lamp Holder w/Starter for Bi-Pin Lamp, ETS, Ergoline and More | eBay
E-Simpo® 6pcs 2G7 4-Pin H Lamp Fluorescent Light Holder 2G7 Base Horiztonal Single Head Tombstone Lamp Socket for LED Fluorescent Tube(2G7) - - Amazon.com
General 28100 - G4 Mini Bi-Pin Porcelain-Halogen Lamp Holder with 5" Leads (G4 MINI BI-PIN PORC SKT 5" WIRE LEADS D3991) - Walmart.com