To your earlier question about the batteries: I only mostly use my 21700 light’s and buy way more of those batteries so I’m not too well-versed on the 18650 options. But, for my 4 emitter Fireflies PL47G2 (also 21700 yet super tiny) I use a 10A battery. I tried the Samsung 40T which is 25-ish Amps and that one tuned the LED’s purple which is very bad for the emitters. But that same battery on my 7-emitter Fireflies E07 works perfectly fine. So I’d say for a 4-emitter 219B light, stick to 10A. for the 7-8 Emitter 219B lights, the 20-25Amp batteries are usually what will give you full power. One of the things I’m not sure about is how Hank sets his up his lights so it’s entirely possible that 10A will work across the board based on what I think I’m hearing others say, but maybe not so much once the battery starts to discharge.
Now as for your KR1, I don’t have one and I haven’t seen one of these smaller throwers in person with an Osram, but I do know it gets much wider than the same emitter in a much throwier host like the K1. So maybe the Osram would be perfect for what you want. I was gonna suggest the SBT90.2 in that host. I don’t know if Hank does it but I’ve seen a few people have it so maybe he does. It gets hot and steps down fast, but for short bursts, you will love it for spotting animals at night and things like that. Maybe there are more efficient LED’s that throw almost as good and will do what you want, not too sure honestly. But I do know that the SBT90 is monster and would be pretty fun for what you want it for. I love going outside and blasting my SBT90.2 lights.
Maybe a D18 would work even better for outside late-night spotting, it’s a wall of light and should still work great at 100 yards or so. And it might come in handy in may other situations too, but thats a significantly larger light with 3 batteries.
Well let me not further complicate things for you, best of luck. I hope you find something that adds some fun to your walks.