Streamlight Sidewinder Stalk Helmet Light 23/28/57/76 Lumens White White/Red/Green/Blue/IR LED Bulb Coyote 28 Meters Distance Features Arc Rail Mount & Assembly Designed to minimize the number of illuminators and beacons an operator must carry, the low-profile Sidewinder Stalk provides ultimate maneuverability. Put light where you need it with multiple mounting options and a flexible stalk to aim the beam. Multi-fuel capability allows it to accept more than one battery type. Features visible white, multi-colored and IR LEDs. A separate Identification Friend or Foe (IFF) switch lets you use both the main light and IFF when needed. Durable clip attaches to helmet or MOLLE vest providing flexibility in hands-free lighting. Includes Arc Rail & Mount, helmet clip, one CR123 and one AA battery.