GE Lighting Garage Lighting & Basement 49333 13-Watt, 850-Lumen T5 Light Bulb with Miniature Bi-Pin (G5) Base, Set of 5 21-inches long, 5-tubes per package Uses 13 watts, provides 850 lumens Lasts 2.3 years based on 6 hours per day usage 0.6-inch diameter T5 with miniature bi-pin (g5) base 4100K Cool white light perfect for sizable spaces, such as basements and garages