Crouse-Hinds EV60 EV Lamp Receptacle for Incandescent Fixtures, 2-1/4 Inch Width, Medium Base

Cooper Wiring Devices 145-BOX Eaton lampholder

Cooper Wiring Devices 332-BOX Eaton keyless socket reducer

Bryant RL159 Medium Base Incandescent Lamp Holder, 2.100 Inch Width, 250V AC, Snap-In

Bryant RL164 Medium Base Incandescent Lamp Holders, Surface & Sign Mount, 250V AC, 2.64 A

Bryant RL101 Brass Medium Base Lamp Holder with Turn Knob, 660W 600V AC

Cooper Wiring Devices 467-BOX Replacement Trouble Lamp Handle

Bryant RL156 Medium Base Lampholder, Screw Mount, 2.1 Inch Width, 12 Inch Leads, White

Pass & Seymour 10085 Medium Base Lampholder, Keyless Porcelain, White, 2-18 AWG Leads, 6 Inch

Pass & Seymour 8101 Medium Base Porcelain Lampholder, 1-3/8 Inch to 1-1/2 Inch Hole

Pass & Seymour 31528 Medium Base Lampholder, White, Keyless, Porcelain, CSA & UL Listed

Pass & Seymour 10045 Medium Base Lampholder White, Porcelain, Keyless, UL & CSA Listed

Pass & Seymour 19062 Medium Base Lampholder, White, UL Listed, Porcelain, Pony Cleat Type