Fluorescent Lamp, Recessed Double Contact Base, T12 Bulb Shape, 60, 9000 H Average Life, 4200 K, Cool White, 45 W, 2850 LM Brightness (Lumens), Soda Lime Housing Material, Phosphor Coated, C78.81 – 2001 Ansi Ballast Code, 1.5 In Diameter, 36.0 In Length, Rapid, +25 °C Operating Temperature, 0.52 LB/Ea