HID Ballast Kit, Lamp Type High Pressure Sodium, Lamp Watts 1000, ANSI Code S52, Input Watts 1100, Input Voltage 480, Ballast Type Core and Coil, Ballast Family HID Magnetic, Number of Lamps 1, 40 Degrees F Min. Starting Temp., Hz 60, Operating Amps @ 480V 2.3, Insulation Class H, Length 6 In., Width 5 15/16 In., Height 4 7/16 In., Includes Capacitor, Core, Coil, Ignitor, Mounting Bracket, Hardware