Want to rig HDS Systems rotary to use as a headlight-headband suggestions?? Searching gave me a lot of car headlight info..Found this, a few of these might work...rather buy from US though...https://www.aliexpress.com/item/32852164742.html
The Nitrecore HB02 could be interesting:
https://de.banggood.com/Nitecore-HB...dlight-Headband-p-86813.html?cur_warehouse=CN
At least is it flexible where you wear the HDS light.