Fluorescent Lamp, R17D Recessed Double Contact Base, T12 Bulb Shape, 60, 12000 h Average Life, 4100 k, Cool White, 800 mA, 110 W, 3710 lm Brightness (Lumens), Soda Lime Housing Material, Shatter Resistant Coated, 1.5 in Diameter, 48.0 in Length, Instant;Rapid, 1.3 lb/EA