Ge260ismv-n-diyb, electronic 2 lamp ballast for the following bulbs: f96t12, f84t12, f96t12/wm, f72t12, f96t12/wmp, f64t12, f60t12, f48t12, 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.