Advance SMARTMATE Electronic Compact Fluorescent Ballast, CFTR70W Lamp, 70 W Lamp, 156/152 W, 120 to 277 VAC, 0.56 to 1.3 A, 50/60 Hz, Programmed Start, Total Harmonic Distortion: 10%, Power Factor: 0.98, 2 Lamps, 4-Pin GX24q Lamp Base Type, Ballast Factor: 1, 75 deg C, Metal, 7.79 in L x 3 in W x 1.29 in H