Yokiamy
(Yokiamy)
4
https://www.1thedeals.com/product/amutorch-ax4-4sst20-3000lm-aluminum-titanium-alloy-21700-flashlight/
I hope the titanium head does not negatively influence thermal performance, alu or copper would be way better.
Edit, freeme mentions titanium, but Amutorch does not say a thing about titanium, they only mention T6 aviation aluminium alloy.