The hot/cold factor and LED performance

摘要

Power saving is one of the key selling points associated with LED technology. Compared to conventional light bulbs, LEDs provide a significant reduction in the power consumption of lighting andrnan increase in the lighting system's efficacy, which is specified in lumens/watt (1m/W).rnAlthough the LEDs' advantages are significant, one limitation is that, for the same drive current, an LED's light output decreases as its junction temperature increases. This change results in a drop in light output and efficacy.