Eaton 660 -Watt Porcelain Keyless Ceiling Socket , White

Ceiling mount lamp holders fit a wide variety of applications and needs for every room in the home, from attic to basement, closet to garage
Porcelain models made of high-strength insulator porcelain
4 Screw terminals
Top wire versions have terminal screws backed out — ready for wiring — without removing the interior
Mounts on 4-in outlet boxes with knockouts for 3.25-in box mounting