Keystone Technologies, KTEB-254HO-UV-PS /A-DP, Ballast, Electronic, F54T5HO Lamp, 54 W Lamp, 120 W Wattage, 120 V, 1 A, 50/60 Hz Frequency, Program Start, -18 deg C Minimum Starting, Total Harmonic Distortion: 10 %, Power Factor: 0.98, 2 Lamps, Ballast Factor: 1, 90 deg C, Steel, 1 in H x 1.2 in W x 16.89 in L Dimensions,