GE259MAX-N-DIY, Electronic 1 Or 2 Lamp Ballast For The Following Bulbs: F96T8, F96T8WM, F72T8, F40T8, Starting Temperature: -20 Degrees Fahrenheit, Normal Ballast Power Factor: .87 - .98, Length: 9.5"L x 1.7"W x 1.2"H, High Efficiency Multi-Volt 120-277 Instant Start.