Luxrite LR20375 (4-Pack) CF26DD/E/835 26-Watt Double Tube Compact Fluorescent Light Bulb, Natural White, 3500K, 1800 Lumens, 4-Pin G24Q-3 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: 10,000 hours 4-Pin G24Q-3 Base