Eaton Cooper Wiring 969-BOX Fixture Socket, 250 V, 660 W, Porcelain

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.