Today’s post, I’ll admit, is on the geekier side of things, but still important. It centers on the idea of efficiency vs. efficacy. If you’re on the border of being dyslexic like me, you’ll barely tell that there’s a difference between those 2 terms – crazy, huh? Anyways, let’s roll the tape:
When we step into the world of LED’s and other alternative light sources, all of a sudden it’s not about wattage any more. Sure, LED’s use less wattage than their incandescent brothers, but comparing simply watts is futile and doesn’t really get us anywhere.
In order to really understand what’s going on, we need to understand the difference in effectiveness, and actually measure out the light’s output.
In fact, if you think about it, it would make more sense to measure all lighting fixtures this way. After all, even incandescent fixtures have differing levels of light output per watt, and so efficacy is what really matters.
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