This is a very “tactical” style 1x18650 light from Armytek. It would appear to be be suitable for a variety of law enforcement, military, security and hunting tasks, given its unique beam profile and rugged design (including potted electronics to withstand weapon recoil). It also has excellent regulation and output/runtime efficiency for its emitter class, as you can see in the teaser runtime below.
Haha, I could see that - somewhat distinctive lights from the field as a whole, but also very “internally consistent” as a common style. Helps explain why they are still around, in this modern age high quality budget lights.
Thanks for comments, I was curious as to how much interest there would be in this light.