Nightstick FORGE II IS Helmet-Mounted Multi-Function Flashlight NS. At Just 2.36 Inches And 3.4 Oz It Stays Low-profile Above Or Below The Brim While Producing 450 Lumens And 7400 Candela To Cut Through Smoke Steam And Volatile Vapors With A 172-meter Beam. A Rear Green follow Me Led Provides Critical Team Accountability In Zero-visibility Conditions While The Glove-friendly Tail Switch Easily Cycles Between High And Low Modes Delivering Up To 4 Hours Of Runtime On High And 14 Hours On Low. Forge Ii Securely Clamps To Traditional-style Fire Helmet Brims With No Slots Or Adapters Required. Engineered To Withstand Extreme Conditions Without Creating Mechanical Spark Hazards The Impact-resistant Housing Is Ip67 Waterproof Dustproof And Drop Tested From 2 Meters. This Light Meets Nfpa Lighting Standards And Is Backed By A Limited Lifetime Warranty. Powered By A Single (1) Cr123 Battery. Not Compatible With Rechargeable Batteries. Warning: Do Not Use Rechargeable Batteries In This Product Or Expose Rechargeable Batteries To Temperatures >140 F (60 C) Due To Potential Explosion Burn And Fire Hazard. Specifications for Nightstick Forge Ii Is Helmet-mounted Multi-function Flashlight: Manufacturer: Nightstick Flashlight Application: Multi Color: Red Fabric/Material: 6061-T6 Aluminum Battery Quantity: 1 Battery Life: 14 hours Bulb Type: LED Beam Distance: 172 m Diameter: 0.94 in Length: 2.68 in Width: 1.18 in Depth/Thickness: 2.36 in Weight: 3.4 oz Weather Resistance: Waterproof Impact Resistant Dustproof Water Resistance Level: IP67 Battery Type: CR123 Package Contents: Nightstick Forge Ii Is Helmet-mounted Multi-function Flashlight