Luxrite LR20730 (2-Pack) F32T8/841 32-Watt 4 FT T8 Fluorescent Tube Light Bulb, Cool White 4100K, 2850 Lumens, G13 Medium Bi-Pin Base Color/Finish: Cool White Color Temperature: 4,100K Average Lifetime: 13,000 hours Lumens (light output): 2850 G13 medium bi-pin base