Sylvania 20890 (6-Pack) CF42DT/E/IN/841/ECO 42-Watt Triple Tube Compact Fluorescent Light Bulb, 4100K, 3200 Lumens, 82 CRI, T4 Shape, 4-Pin GX24q-4 Base Color/Finish: Cool White Color Temperature: 4,100K Lumens (light output): 3200, 82 CRI Average Lifetime: 16,000 Hours 4-Pin GX24q-4 Base