Before reading the UV post below, I never connected lights with finding blood. I am a hunter. I especially enjoy big game bow hunting. Shooting an animal just before dark is always a tough decision. If the blood trail is small, it sucks and I don't stop looking.
But, if a UV light would pick up the blood drops on leaves then life would be much easier. Man, I feel ignorant. What kind of lights would be best and/or strong enough to pick up a blood trail on leaves on the forest floor ??? Do they make a focusable beam?
This is cool.
Streamlight Super Stinger RC