GE's LED tubes are rated to last 36,000 hours. It's slim size fits in the same fixtures as traditional 18-inch T8 fluorescent bulbs. 18" T8/T12, 15 W, T8 Tube, Daylight, PK6 GE's T8 LED tubes replace 18-inch T8—1-inch diameter—fluorescent bulbs using the existing fixture and electronic ballast..
.A silver-based antimicrobial agent is integrated into the marker barrel and cap during manufacturing, and works to prevent the growth of microorganisms like bacteria, mildew, and mold. You can now feel better about sharing with classmates or coworkers.