SureFire Military Helmet Mount Light White/Blue/Blinking IR LED Tan NSN 6220-01-549-4174. The compact variable-output HL1 HelmetLight features primary and secondary LEDs and one infrared Identify Friend or Foe (IFF) beacon. The primary LEDs are perfect for general-purpose close-work illumination. The colored secondary LEDs serve the same purpose but in a low-signature dark-adapted-vision-friendly color. Its durable watertight polymer body attaches to any Modular Integrated Communications Helmet (MICH) via an included ambidextrous mount with 20 preset positions for true 360-degree rotation. With the mount in place the HelmetLight can be quickly and securely attached. Pressing a lever on the mount unlocks the light for quick removal. An optional Z71 carry clip mounts the light to any MOLLE or ALICE vest. The HL1 is a highly versatile illumination tool for military law enforcement and tactical use. Specifications for SureFire Tactical Helmet LED Light/Military Helmet Mount Flashlight: Manufacturer: SureFire Flashlight Application: Military Tactical Fabric/Material: Glass-Filled Nylon Polymer Neoprene Beam Color: Blinking IR White Light Output: 1.4 - 19.2 lumens Battery Quantity: 1 Bulb Type: LED Length: 3.2 in Width: 2.4 in Weight: 2.4 oz Weather Resistance: Yes Quantity: 1 Battery Type: CR123A Included Accessories: Standard Condition: New Features of SureFire Tactical Helmet LED Light/Military Helmet Mount Flashlight White and night-vision-friendly colored LEDs for close-quarter activities Blinking infrared LED serves as IFF beacon (all models) Infrared LEDs (some models) for use with night vision devices Two toggle switches and a pressure switch for total control Constructed of durable glass-filled nylon polymer and neoprene Easily removable for servicing or transfer to other helmets (Z71 mount required) O-ring sealed watertight body for dependable all-weather service Long runtime from a single 123A battery with 10-year shelf life Package Contents: SureFire Tactical Helmet LED Light/Military Helmet Mount Flashlight SureFire HL1-A-TN: Military Helmet Mount Light White/Blue/Blinking IR LED Tan NSN 6220-01-549-4174