Gerber pioneered the blood tracking light, producing the first back in 2005. Since then, they have been perfecting their Trax Technology making blood standout against the diverse backgrounds we hunters often encounter. With this in mind, we've added a third color to our unique mix of red an blue L.E.D.s. The amber L.E.D.s enable the user to disseminate things that are truly red, like blood, from things that have red in them, like leaves, certain woods, etc. The Game Tracker is considerably brighter than the original Gerber Carnivore and Carnivore XP. This hand held light will help take the guesswork out of the most critical piece of your hunt.