Luxrite LR20390 (2-Pack) CF26DT/E/835 26-Watt Triple Tube Compact Fluorescent Light Bulb, Natural White, 3500K, 1800 Lumens, GX24Q-3 4-pin base Luxrite Compact Fluorescent Light Bulbs meet all your lighting needs while saving you on energy costs. Color/Finish: Natural White, Color Temperature: 3,500K Lumens (light output): 1800 Average Lifetime: 12,000 hours GX24Q-3 4-pin base