From Gerber info:
Ready for a science lesson? Research shows that the human eye is most sensitive
to the color red and much less discerning of dark colors such as blue and black.
We've calibrated multiple light spectrums in a way that makes the red of blood
appear to virtually jump off the ground. Once you've found the trail, you can
easily toggle back and forth between the bright white xenon light and the TRAX
L.E.D. mode to locate your trophy and find your way home. Then you can get on
to more important things, like picking the thistles out of your backside.
Finally, a light designed for hunters, by hunters. The Carnivore Blood Tracking
Light combines bright xenon light with brand new, patent pending TRAX blood
tracking technology. The sportsman can easily toggle between bright xenon and
TRAX to find his wounded game. Utilizing seven uniquely calibrated L.E.D.s,
TRAX brightly illuminates the red color of blood like no light ever before.
The unique pistol grip and quick deploy 4 AA battery cartridge allows for ergonomic
comfort and easy maintenance. Lanyard and sheath included.
45 lumen Xenon bulb with spot-flood reflector
Easy toggling between TRAX and Xenon
4 AA easy access battery cartridge