Fluorescent Lamp, Recessed Double Contact R17D Base, T12 Bulb Shape, 60, 12000 H Average Life, 4100 K, Cool White, 85 W, 6350 LM Brightness (Lumens), Soda Lime Housing Material, 1.5 In Diameter, 72.0 In Length, Rapid, -29 °C Operating Temperature, 1.07 LB/Ea