GE Lighting Active Spaces 80097 40-Watt, 2050-Lumen T12 Light Bulb with Medium Bi-Pin Base, 30-Pack 48-Inch long 1.5 inch diameter T12 with medium bi-pin (g13) base Uses 40-watts Provides 2050 lumens Lasts 9.1 years based on 6 hours per day usage