Luxrite LR20440 (2-Pack) PL-L24W/841 24-Watt Compact Fluorescent Long Biax Tube Light Bulb, Cool White 4100K, 1400 Lumens, 2G11 4-pin base Luxrite PL-L24W Twin Tube Light is ideal for commercial fixtures in the office, retail, and general purpose use in your household. Color/Finish: Cool White, Color Temperature: 4,100K Average Lifetime: 12,000 hours Lumens (light output): 1400 2G11 4-pin base