You won’t find a helmet light any tougher. The Vantage’s remarkably compact, lightweight body and inner workings were originally designed to withstand the shock-after-shock recoil of an automatic weapon in combat conditions. Lightweight, compact and low profile, the Vantage has been designed to clamp onto either side of any traditional or modern firefighter’s helmet or hard hat. It rotates 360-degrees and includes a 5° angle adjuster insert to optimize beam location. Features: Lightweight, compact, low profile design Easily attaches/detaches above or below brim on fire helmets, industrial helmets and hard hats Fits both traditional and modern style firefighter helmets Tighten clamp with your fingers. No tools necessary! C4® LED delivers 7,000 candela peak beam intensity; 115 lumens; 167 meter beam distance Features an ultra-bright blue taillight LED Run 6 hours to the 10% output level Dual direction, easy access on/off switch. Swivel clamp and insertable 5° angle adjuster to optimize beam location Rotates 360 degrees on clamp Textured parabolic reflector produces a smooth beam hotspot with optimum peripheral illumination Anodized aircraft aluminum construction High temperature, shock mounted, impact resistant Boro Float glass lens High-impact, chemically-resistant engineering polymer LED housing Reflective strip on housing provides visibility even if light is off IPX7 waterproof to 1 meter for 30 minutes Uses two 3V CR123A lithium batteries (included) Serialized for positive identification Weighs a mere 5.14 oz. (145.7 grams) Meets requirements of NFPA 1971-8.6 (2007); 500-degree heat resistance test Meets applicable European Community Directives Limited Lifetime Warranty Assembled in USA Its waterproof, chemical-resistant anodized aircraft aluminum body; high-impact engineering polymer LED housing; and high-temperature, shock-mounted impact resistant Boro Float glass lens will stand up to intense heat, extreme weather, and all the physical punishment your fire scene, rescue operation, or work environment can deliver. Guaranteed. C4 LED—almost 3 times brighter than High Flux LEDs. It’s a huge upgrade over second generation LED technology. In fact the Streamlight C4 premium LED is 7 to 10 times brighter than the first generation LEDs still used in many flashlights today; and they consume far less energy. The result is a blinding light, far more powerful than any LED before it—with the extended runtime so critical in an unpredictable fire or rescue situation. And because it’s impervious to shock, the primary LED will not break or burn out over its 50,000 hour lifetime. An ultra-bright blue safety taillight LED lets your partners see you when they're following, or searching, even in a smoke-filled room. Convenient, long-lived lithium batteries can be changed in seconds. Like the Streamlight Tactical Weapon Lights it’s based on, the Vantage uses two small, lightweight, 3-volt CR123 lithium batteries to power both the main light and an ultra-bright blue taillight LED. You can carry a set of spares in any pocket. The back of the Vantage can be opened, the batteries changed, and snapped back on again in under 30 seconds, without taking the light off the helmet. And because the lithium batteries have a storage life over 10 years, and are not affected by extreme temperatures, they provide a convenient and extremely reliable source of power.