Triad® Electronic Ballast, High Frequency, CFL Lamp, 40 W Lamp, 104 W, 120 VAC, 0.88 A, 50/60 Hz, Instant Start, 10 deg C Minimum Starting, Total Harmonic Distortion: <20%, Power Factor: >0.95, Dimmable: No, Ballast Factor: 0.88, NEMA 1, 105 deg F, Remote Mount, Black, 9.5 in L x 2.4 in W x 1.55 in H