Maybe, but it looks kinda interesting, though.
Common Li cell for e-cigs, I think, at least it sounds familiar. So might be fairly regulated if done right.
Swap out the Angry Blue™ LED for a nice 4500K XP-E for nicer focus, or Hell, throw in a ’351 or ’219 and you’re good to go.
Lotta work for a 5buk light, though. All the innards might be press-fit…