Proven effective by military forces worldwide for over 40 years, ChemLights are the issue lights for their reliability and brightness. Made to enhance both nighttime tactical operations and training safety. With a patented phthalate-free formulation, they are non-flammable both before and after activation, maintenance-free, non-toxic, and waterproof and produce no sparks or flames. Recommended for start lines, drop zones, and hazard markers. The military version is not only bright but has a secure clip and bottom made so you can remove the foil to use as a directional light.  Perfect for survival, first aid, and evacuation kits. Individually foil-wrapped for light/moisture protection that can also be used to cover portions of the light if needed.