GE Lighting Garage Lighting & Basement 10316 30-Watt, 2150-Lumen T8 Light Bulb with Medium Bi-Pin Base, 6-Pack 36-Inch long 1.0 inch diameter T8 with medium bi-pin (g13) base Uses 30-watts Provides 2150 lumens Lasts 3.4 years based on 6 hours per day usage