Sylvania 21136 (6-Pack) CF13DS/827/ECO 13-Watt Single Tube Compact Fluorescent Light Bulb, 2700K, 800 Lumens, 82 CRI, T4 Shape, GX23 Bi-Pin Base Color/Finish: Warm White Color Temperature: 2,700K Lumens (light output): 800, 82 CRI Average Lifetime: 10,000 Hours GX23 Bi-Pin Base