I mounted this on my helmet ARC rail. It casts IR light in a wide arc to about 300 Meters! It creates tripwire reflections, metal reflections, and retina/eye reflections.
I wouldn't patrol a hostile environment without this light again.
Pros: Lights up like an IR stadium light
Cons: Nobody knows about it.
This review was written in the old system and had content requirements that are different than reviews written today.