LumaPro(R) Electronic Fluorescent Ballast Ballast Start Type Rapid Input Voltage 120 to 277V AC Number of Bulbs Supported 2 Max Bulb Watts 110 W Ballast Bulb Type T12HO Dimming No Dimming Type No Dimming Dimming Method No Dimming Dimming Range No Dimming CA Title 20 Compliant Yes Min Starting Temp 0 Degrees F