Medium Base Socket, Keyless, White Porcelain, 1/8 IPS, 18 Inches Leads, 660 Watt Max, 250V Max, PLT Solutions PLT 40-0761-99 | 1000 Bulbs

Medium Base Socket, Keyless, White Porcelain, 1/8 IPS Hickey Mount With Screw Set, 660 Watt Max, 250V Max, PLT Solutions PLT 40-0080-99 | 1000 Bulbs

EPCO 16500, Medium Base Lampholder, Keyless, White Porcelain, 660 Watt Maximum, 250V Maximum | 1000 Bulbs

Medium Base Socket, Keyless, White Porcelain, 1/4 IPS Hickey Mount, 660 Watt Max, 250V Max, PLT Solutions PLT 40-0076-99 | 1000 Bulbs

EPCO 16520, Medium Base Lampholder, Keyless, White Porcelain, 7 Inches Leads, 660 Watt Maximum, 250V Maximum | 1000 Bulbs

Project Source 660 -Watt Porcelain Keyless Lamp Socket , White | LPS9

Project Source 250 -Watt Porcelain Keyless Lamp Socket , White | LPS4

2 Pack, Medium Base Socket, Keyless, White Porcelain, Side Mount With Leads, 660 Watt Max, 250V Max, PLT Solutions PLT L10092FL | 1000 Bulbs

Satco Medium Base Socket Keyless 1 Light 660 Watt Porcelain Ceiling White 90/445

Quorum International White Keyless Porcelain Socket - Style 4603J