Luxrite LR20750 (2-Pack) F17T8/841 17-Watt 2 FT T8 Fluorescent Tube Light Bulb, Cool White 4100K, 1350 Lumens, G13 Medium Bi-Pin Base Color/Finish: Cool White Color Temperature: 4,100K Average Lifetime: 13,000 hours Lumens (light output): 1350 G13 medium bi-pin base