Sunlite F54T5/841/HO/12PK T5 High Output Performance Mini Bi-Pin (G5) Base Straight Tube Light Bulb (12 Pack), 54W/4100K... 54 Watt, Case of 12 Lamp T5 Light Bulb, Produces a spectacular Cool White Light at 4100K Simply remove and replace current bulbs Works with linear fluorescent rapid & instant start fixtures Ideal solution for commercial, industrial, sign, and display applications