FWIW, shortly after I pulled the trigger on the Armytek, Amazon had the th20 on a sale I couldn’t refuse. Have been playing with it for the past couple of weeks and I really like the light — especially with a clip! Mixed on the ramping interface. I have wanted a ramping light for years. It is exactly what I wanted. Embarrassed to admit that it took me way to long to figure out that when you stop the ramp the next time you start it goes in the opposite direction. Truly hated the ramping feature until I figured that one out. Modes are certainly easier and make the battery more predictable. OTOH it is nice to be able to set it to what ever light I want and the firefly and turbo are always available directly. Great light and if things go as I expect it will make a great gift for my grandson and I will keep the Armytek — assuming it finally completes its journey from the East soon.
Really like the regulated driver coupled with the heavy (for a AA light anyway) body. Thermal management is outstanding! Modes are the same with 14500 or AA. First light I have had where that is the case. That said, for me at least, the 14500 is pretty much just a novelty due to the fact that with the regulated driver and no LVP you end up with a light that is perfect one second and dark the next — really have to run protected cell. With the AA there is some drop off at the end. Turbo is certainly noticeably brighter with the 14500 but the AA is plenty bright for my needs. The AA on high is definitely over 200 lumen (claimed 230). When I need more than that, believe it or not, I have other flashlights 