LSF rating of 99% at 2000 hours, 98% at 4000 hours, 95% at 6000 hours and 86% at 8000 hours
LLMF rating of 94% at 2000 hours, 91% at 4000 hours, 89% at 6000 hours and 86% at 8000 hours
Design temperature rating of 28 deg C
Fluorescent lamps operate at cooler temps. and more efficiently than incandescent lamps. An electrical arc passes between two electrodes at each end of the phosphor coated glass tube. When the arc mixes with the gases inside, it emits fluorescent light.