Sylvania 20672 (6-Pack) CF18DD/E/835/ECO 18-Watt Double Tube Compact Fluorescent Light Bulb, 3500K, 1150 Lumens, T4 Shape, 82 CRI, 4-Pin G24q-2 Base Color/Finish: Natural White Color Temperature: 3,500K Lumens (light output): 1150, 82 CRI Average Lifetime: 12,000 Hours G24q-2 4-Pin Base