GE432MAX-N-DIY, Electronic 3 Or 4 Lamp Ballast For The Following Bulbs: F32T8, F32T8WM, F28T8, F25T12, F25T8, F32T8-25 Watt, F17T8, FE15T8, Starting Temperature: -20 Degrees Fahrenheit, Normal Ballast Power Factor: .87-.98, 9.5"L x 1.7"W x 1.2"H, High Efficiency Multi-Volt 120-277, Instant Start.