I have long ago replaced all the 60W eq CFLs with LED bulbs, but 100W LEDs cost far too much. Last fall they were on an amazing sale 1600 Lumen, 3000K 15W and $5 each. I bought 5, and replaced 3 already. The last two i have been waiting for the CFLs to burn out but they seem to be immortal, already lasting over twice their rated lifetime.
When calculating payback one calculates energy savings compared to replacement cost and decides whether to buy or not.
In this case i already have the LEDs and the calculated savings are about $4 a year, but then throwing away working CFLs bugs me, yet i wonder how much longer the CFLs will last (they now give off a somewhat rose coloured light mind you).
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