Dark Ops Hellfighter X8 LED Flashlight - 5-3/4" overall. LED generates up to 150 peak lumens. Aircraft grade 6061-T6 511 aluminum body with the most comprehensive finishing and anti-corrosion treatments on the market today. Fits standard 30mm scope rings. Hardened steel glass breaker bezel. Shock-isolated bulb can endure the pounding of large caliber automatic weapons fire. Its patent pending striker ring at the bezel is designed to shatter glass in law enforcement interdiction activities. Momentary/lock-on switch allows for intermittent tactical use as well as single thumb lock-on activation. Operates at full power from -10¡ to +130¡ Fahrenheit. With 6 Viton high-temp double O-rings at the connection surfaces, it is waterproof. Uses two DL123 series 3-volt lithium batteries (included). Hang packaged.