GE, F96T8/SPX41/HO, 86W, High Output Linear Fluorescent Bulb, MOL: 96", 1" Diameter, 4,100 Kelvin Color Temperature, 18,000 Hour Rated Life, 8,200 Lumens, Recessed Double Contact Base, Color Rendering Index Is 86, Minimum Starting Temperature Is Rated At Minus 20 Degrees Fahrenheit.