1R2 gang. Non-pro for me. The battery isn’t great but the convenience is exactly what I want in a Keychain flashlight. Dim is all I need for a whole room when dark adapted, bright is all I need elsewhere. It’s so nice to have a focused beam compared to the flood on my phone. And no touchscreen whackness or concern about dirty hands, just twist and light.
I think I have 15 of those flashlights now. Several reds for astronomy, several whites stashed around in cars and backpacks, a few uv, and a blue and green because why not. My EDC is an olight i1r on my keychain since it’s smaller, rechargeable, and only needed randomly, but those compact AA lights are so convenient either when packing for an exact activity or using in an emergency. I store them with rechargeable batteries but like that I can use a standard battery on the fly too, if needed.
For everyone else, they’re generic flashlights I find on ebay. The head is focusable (o-ring slider) from a 60+° circle with smooth output down to some very tight beam that projects the grid lines of the LED chip - and a hair above that focus you can project just the lead wire. Half-pressing the tail button switches between bright/medium/dim/strobe.
Olight, oh yeah!