Universal™ AccuStart®5 Electronic Fluorescent Ballast, T5HO Lamp, 54 W Lamp, 113/116 W, 120 to 277 VAC, 0.96 A, 50/60 Hz, Programmed Rapid Start, -18 deg C Minimum Starting, Total Harmonic Distortion: 0.98/0.99, Dimmable: No, 2 Lamps, Ballast Factor: 1, NEMA 1, 167 deg F, 16.88 in L x 1.245 in W x 1 in H