Difficult to say with the driver that's installed. The default settings are 100% brightness limited until it gets too hot to hold, so looking at 3 minutes max. The 2nd level is set to 30% brightness which gave a runtime of 2 hrs 10 min. You have the ability to change those levels to any brightness though.
The wider the beam you go for, the less range you get and the hotter the torch will get at high lumens. There's no way around this unless a larger model is used which I don't have for mounting. If you're only going to use it handheld then the Astrolux FT03 (SST40) would be ideal. You can get 400m of good visibility on Turbo, so using it on High for 200m would be ideal. It's made for a 26650 battery, but has an adapter for 18650's as well.
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