For burning at 10' a single mode laser will almost certainly be better than most 445s. A really good 405 should be just the ticket. You can do it with a beast of a 445 (think 9mm diode) but the beam specs on those multimode diodes are relatively poor so much more power will be needed making CR123 batteries impractical.
Well, pinholes in white paper at 10 feet as mentioned above is what I'm looking for, albeit, it appears that model (If the one I found was the same model) does not use the 123 primary batteries I'd prefer.
I've got Blord making me a 500mW 405nm laser right now. sounds like it could be quite the burner. I believe it uses 16340 batteries, and cr123 could likely power it too, but 16304 are 3.7 volts and cr123 are 3 volts, so it wouldn't be full power on the cr123s
Hey pyro, we're talking pure white here, but I am curious how many watts of 445 you have there. looks like at least 2. I tried this experiment the other night, as I just got my new lenses from rayfoss, and my rifle fails on pure white, at ten feet, focused to infinity. granted these are the three layer lenses on 1.5 watt, I am guessing you have a g2 on there pyro?