Designed to minimize the number of illuminators and beacons an operator must carry, the Streamlight Sidewinder Stalk Helmet Light 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. A separate Identification Friend or Foe (IFF) switch lets you use both the main light and IFF when needed.FeaturesDurable clip attaches to helmet or MOLLE vest providing flexibility in hands-free lightingIdentification, Friend or Foe (IFF) strobe activated by a three-position switchDust-tight and waterproof to 1m for 30 minutes3-meter impact resistance testedOne-year warrantyWhite, IR, red, blue and green LEDs