Luxrite LR20295 (6-Pack) CF13DD/827 13-Watt Double Tube Compact Fluorescent Light Bulb, Warm White, 2700K, 900 Lumens, GX23-2 Bi-Pin Base Luxrite Compact Fluorescent Light Bulbs meet all your lighting needs while saving you on energy costs. Color/Finish: Warm White, Color Temperature: 2,700K Lumens (light output): 900 Average Lifetime: 10,000 hours GX23-2 bi-pin base