Great little light - Streamlight Sidewinder Sportmans / Tactical Flashlight with Articulating Head

This light is everything it's advertised as being. I bought three for Christmas, for my son's and myself. They were the big hit gift this year. Adjustable intensity light, red and blue lights, IR that really works. We checked it with a night vision scope. It's undetectable in the darkness, but with the night vision scope it looked like a flashlight beam of light. The mounted clip attaches to a helmet strap, a back back, or shirt or jacket pocket. It runs on common AA batteries that are available everywhere