Ballast, Fluorescent Electronic; Lamp Type: T8; Number of Lamps: 1; Lamp Starting Method: Instant; Voltage: 120/277V; Primary Lamp Type: T8; Power Factor: Normal Power; Wiring: Wiring; Min Temp - deg F: 0°F (-18°C); Packaging: Individual Pkg:10 (Priced per ballast); Lamp Range: F17T8, F25T8, F32T8, F32T8U, F32T8ES(25, 28, 30W), F40T8 (1) F17-40T8 ; THD Max - Percent: 0.1; Manufacturer Series: Triad