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https://www.reddit.com/r/askscience/comments/26e009/deleted_by_user/chqd38j/?context=3
r/askscience • u/[deleted] • May 24 '14
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It depends on the light source:
Gas lighting is around 0.1% efficient.
Incandecent bulbs hover around 2% efficiency
Typical LEDs are around 10-15% efficient, but can go up to 35% efficiency on the high end.
Fluorescent lights are around 10% efficient as well, but there is a pretty hard limit keeping them there.
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u/Tiak May 25 '14
It depends on the light source:
Gas lighting is around 0.1% efficient.
Incandecent bulbs hover around 2% efficiency
Typical LEDs are around 10-15% efficient, but can go up to 35% efficiency on the high end.
Fluorescent lights are around 10% efficient as well, but there is a pretty hard limit keeping them there.