Height: 6-3/4-Inch , Width: 5-3/8-Inch * Medium base porcelain socket with nickel plated copper screw shell uses one 35-50W PAR20 lamp * Copper alloy contacts provide precise spring action - no arcing, will not take a set and pulls to up position for two-circuit application * Socket housing made of die cast aluminum * 90-degree vertical aiming capability and 360 degree rotation