I just bought a green laser flare last summer. Oh. My. God. there is a reason that when people are arrested for flashing lasers at flying aircraft it's always a Green.

I have hit a confirmed 3 mile target with the laser. Standing several feet away you see the beam from the tip of the pointer reach out. It has seriously made me consider ditching my vietnam era Firefly strobe and just carry the laser flare and my normal headlamp with strobe function, for back country use. Obviously I think a dedicated strobe on a life jacket would be required in a water environment.