GE Lighting Garage Lighting & Basement 17705 18-Watt, 1150-Lumen T8 Light Bulb with Medium Bi-Pin Base, 6-Pack 24-Inch long 1.0 inch diameter T8 with medium bi-pin (g13) base Uses 18-watts Provides 1150 lumens Lasts 3.4 years based on 6 hours per day usage