Philips T12 fluorescent lamps provide high performance in a wide range of sizes, shapes, and types. F96T12/D/HO-O ALTO 15PK. 110 watt - 96 - T12 - Recessed Double Contact - (R17d) Base - Color/Finish: Daylight - Color Temperature: 6,500K - Average Lifetime: 12000 hours - Lumens (light output): 7800 - CRI: 79 - High Output - Outdoor - Fluorescent Light Bulb.