Specifications:

Lamp Type: ED17 Medium Base High Pressure Sodium
Number of Lamps: 1
Lamp Wattage: 50 W
Lamp/Ballast Voltage: 120 V
Lamp Included: Yes
Ballast Type: R-NPF
Refractor/Lens Type: Injection Molded Clear Polycarbonate Refractor
Shape: Square
Housing Material: Die-Cast Aluminum
Finish: Bronze Powder Coated
Mounting: Ceiling
Size: 9 Inch L x 9 Inch W x 7-1/4 Inch H
Approval: UL, UL (Canada and US)