Luxrite LR20816 (2-Pack) F24T5/841/HO 24-Watt 22 INCH T5 High Output Fluorescent Tube Light Bulb, Cool White 4100K, 1635 Lumens, G5 Mini Bi-Pin Base Color/Finish: Cool White Color Temperature: 4,100K Average Lifetime: 20,000 hours Lumens (light output): 1635 G5 mini bi-pin base