Advance, ICN2S110SC35I, Rapid Start Electronic Fluorescent Ballast, 110 W Lamp, 191/186 W Wattage, 120 to 277 V AC, 0.7 to 1.64 A, 50/60 Hz Frequency, Rapid Start, -20 deg F Minimum Starting, Total Harmonic Distortion: 10 %, Power Factor: 0.9, 2 Lamps, Ballast Factor: 0.9, 70 deg C, Metal, 9.5 in L x 1.7 in W x 1.18 in H Dimensions