Advance, Magnetic, HID Ballast, Ballast Start Type Probe, ANSI Code M58, Metal Halide Ballast Bulb Type, Number of Bulbs Supported 1, Max. Bulb Watts 250 W, Input Voltage 120/277V AC, Input Watts 290W, -20 Degrees F Min. Starting Temp., Ballast Factor 1, Frequency 60 Hz. This item has been restricted from sale in the following state (s): []