Dynamo hubs

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sohi in reply to @Skülly

The 3W vs. 2.4W numbers are what you get from the dynamo from a certain minimum
speed. The all go above that value at higher speeds. People are running 2 headlights from 1
dynamo.
https://www.cyclingabout.com/dynamo-hub-power-drag-testing-schmidt-son-shutter-precision-shimano/

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Eeyorecore in reply to @sohi

Any info on people running two lights? Peter White says that you’ll get under half as much light but spread over a larger area.

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sohi in reply to @Eeyorecore

I have been trying to get more details about that and the most I found is that it should give
you full brightness on both lamps but at a higher speed.
Here is a German article that says as much:
https://fahrradzukunft.de/4/doppelt-hellt-besser/
this is about multiple tail lights:
https://forum.cyclinguk.org/viewtopic.php?t=92628

here is a video about connecting 2 headlights and 2 tail lights:
https://www.youtube.com/watch?v=hNsvLVaHMCQ

here is a German forum talking about connecting the lights in series for 12v vs parallel for 6v
https://www.velomobilforum.de/forum/index.php?threads/nabendynamo-sa-3w-zwei-scheinwerfer-ein-ruecklicht.40317/

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