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[–] uncle_bob 0 points 1 point (+1|-0) ago  (edited ago)

Higher efficiency has diminishing returns. The jump from incandescents meager 5% efficiency to even 50% is huge. 100 "watts" worth of lighting now uses aprox 20 actual watts. Going from 80% to anything higher though is never going to pay for it's self.

I don't care if the new lights uses 18 or 19 watts, it just doesn't matter.