[Theodores]

Annoying. Blame the Germans and their lighting laws for bicycles. I want human powered USB-C with enough oomph to power a modest sound system or lights, whilst charging my phone. The allure of USB-C is what interests me, but 3W is not much to work with. Also annoying, no rear dynamo for my bike, so I can't even double up to 6W.

I will probably end up with no sound system and just expensive dynamo lights, using a USB speaker that doubles up as a power brick.

There is a nice USB battery kit for dynamo that fits in the steerer, so it is soldering iron time for that, so might as well learn how to do USB-C power things.

One day there will be structural solar panel batteries that can be 3D printed into lightweight bicycle frames, so maybe I will stick to throwaway lights until then!

[forlorn_mammoth]

> power a modest sound system

please don't inflict your music on everyone around you.

[a96]

A literally modest system would center around headphones. :)

[Theodores]

So, 72 decibels in a car is fine, with that just being noise pollution, not even music?

And there is you on your high horse telling me this?

How patronising!

[dktoao]

Some of the bottle style ones claim to go up to 6W, they would also be easier to double or triple up. They are not nearly as nice and efficient as the hub dynamos though