NightStick Multi-Function Light - Black
This pocket flashlight has four output settings that make it ideal for hands–free illumination while working, hunting or searching. The different output modes are;
Red – for preserving one's night vision and low-light map reading
Blue – for locating and IDing blood and bodily fluids
Green – for high contrast illumination
White – as a backup light
This flashlight is popular for crime scene investigators, law enforcement agents, military operators, forensic scientists and your everyday hunter.