I was in the need of a new light on my helmet to do a night MTB tour.

I started with the following gopro base:

https://www.printables.com/model/206896-gopro-bicycle-helmet-mount

Here I designed the added stl for. It can hold the following led light:

https://a.aliexpress.com/_EH5aKCv

The used screw to tighten it is a M3

Printed with no support

25% infill