Eaton Wiring Devices 969-BOX Lamp Holder, 250 VAC, 660 W, White

Screw terminals are backed out. Hickeys and nipples are threaded for mounting on standard fixture, 0.44 in bracket height, 1.88 in overall height. 660 W, 250 V. Temperature rating of -40 to 65 deg C. Interiors have removable turn knobs.