Luxrite LR20275 (6-Pack) CF9DS/841 9-Watt Single Tube Compact Fluorescent Light Bulb, Cool White 4100K, 600 Lumens, G23 Bi-Pin Base Luxrite Compact Fluorescent Light Bulbs meet all your lighting needs while saving you on energy costs. Color/Finish: Cool White, Color Temperature: 4,100K Lumens (light output): 600 Average Lifetime: 10,000 hours 2-Pin G23 Base