Thanks for the info.
Though that’s a disappointing one. Please let me explain…
Most of my friends who actually use flashlights are backpackers. They tend to pick headlamps. Always plastic ones; Black Diamond, Petzl and such. Sometimes I try to convince them to get something brigher, more efficient, with better tint, tougher, with more battery….and I always fail because even 92 g of Skilhunt H03 with 18650 cell is a lot for them. Similarly skinny light with 18350 would have a chance. And one that allows to pick tube size - even more so. I see that H1 with 18350 will weigh roughly as much as Skilhunt H03 with 18650. I see little reason to use 18350 then…
Also - I’m a backpacker myself. And a weight weenie on top of that. I have quite a few uses for H1 even as it is now (most importantly: a worklight, after putting a TIR in it) but it won’t become my ultimate headlamp; there will still be significant uses where it’s just too heavy.
Anyway I fully expect that H1 will be on my list of lights worth recommending - but not to everyone. Significantly - not to most of my friends.