Incandescent Lampholder, Phenolic Pan, Medium Base, 660W-250V, Keyless Fixture Socket, Black, Pkd 10/ Leviton Large Box 100/ Carton Contractor Pack. With-Body Stamped UL, CSA Aluminum Screw Shell, Terminal Screws Out,single Leg Bracket, 59/64 Inch From Center Of Socket To Center Of Mounting Hole.