Sylvania 21117 (12-Pack) CF13DD/827/ECO 13-Watt Double Tube Compact Fluorescent Light Bulb, 2700K, 780 Lumens, 82 CRI, T4 Shape, GX23-2 Bi-Pin Base Color/Finish: Warm White Color Temperature: 2,700K Lumens (light output): 780, 82 CRI Average Lifetime: 10,000 Hours GX23-2 Bi-Pin Base