LumaPro(R) Electronic Fluorescent Ballast Ballast Start Type Instant Input Voltage 120 to 277V AC Number of Bulbs Supported 3 Max Bulb Watts 40 W Ballast Bulb Type T8 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