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