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0 pointsduskwuff13y ago0 comments

That's assuming a perfectly efficient dynamo and no mechanical losses. (Which are both huge assumptions.)

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icoder13y ago· 1 in thread

Exactly, and since they state that they think they can make it twice as efficient, that would mean they run at max 50% now.

duskwuffOP13y ago

I suspect it's even less than that. A fancy (= expensive!) bicycle hub dynamo has an efficiency of about 70%, and that's assuming that it's operating at peak efficiency, and that there are no additional mechanical losses in the lamp.

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