Mogul base, white porcelain, removable turn knob. 2 circuits, hickey tapped. 1/4″ I.P.S. x 7/8″ high. 750W. 250V. No. 8601: Voltage: 250V, Wattage: 750W, Finish: White Porcelain, Lamp Socket Base: Mogul Base, Connection Size: 1/4″ I.P.S. x 7/8″ H, UL Listed: Yes, Pkg Qty: 1, Package Type: Bag