Nightstick FDL-300R Tactical Fire Light-Non-Rechargeable, 5.5-Inch, Red 180 Lumens Momentary or constant-on 190-meter Beam distance Fits most 3rd party 1 helmet mounts Two CR-123 batteries (included) 180 Lumens flashlight Fits most 3rd party 1" helmet mounts Beam distance rated at 190 meters Waterproof glass-filled nylon polymer housing - Red Powered by two CR-123 batteries (included)