Sylvania QUICKTRONIC® PREMIER™ Electronic Fluorescent Ballast, High Efficiency, FT40DL/28W/SS Lamp, 28 W Lamp, 95/94 W, 120/277 VAC, 0.79/0.95 A, 60 Hz, Instant Start, 0 deg F Minimum Starting, Total Harmonic Distortion: 0.1, Power Factor: 0.98, No Dimmable, 3 Lamps, Thermal Protection: Class P, Ballast Factor: 1.07, NEMA 1, 70 deg C, Remote Mount, 9.5 in L x 1.68 in W x 1.18 in H