Most ballasts are designed to operate at specific voltages. Newer electronic ballasts, including Philips Advance models that use IntelliVolt technology, offer much greater flexibility and other advantages such as inventory reduction. Todays increasing demands on electrical utilities can cause wide voltage variations during load demand changes which in turn cause light output from lamps operated on dedicated electronic and electromagnetic ballasts to vary with the input voltage changes. With IntelliVolt technology, many Philips Advance ballasts maintain constant light output through nominal input voltage ranges of 120 to 277 volts, thereby compensating for any change in input voltage. For 2 F34T12 or F40T12 lamps Approved for commercial applications Rapid start, high power factor Operates on 120V or 277V systems Input frequency: 60 hertz Ballast factor: 0.85 Max THD: 20% Minimum start temperature F34T12 60 degree fahrenheit, F40T12 50 degree fahrenheit Compatible with sensormatic systems UL listed CSA certified Dimensions: 9.50 L x 1.3 W x 1 H Individually boxed.
