400 Watt, CWA Circuit, High Pressure Sodium, High Intensity Discharge Ballast

400 Watt, CWA Circuit, High Pressure Sodium, High Intensity Discharge Ballast 120/208/240/277 Volts, 1.7 to 3.8 Amp, 4-3/4 Inch Long x 4 Inch Wide x 4-7/16 Inch High