The TLR-1 Game Spotter features a shock-proof, green C4 LED that produces a long-range beam that reaches 350 meters! Green LED combined with a deep-dish parabolic reflector produces an intense hot-spot that provides long-range identification, preserves night vision and won't spook varmints. Green C-4 delivers 31,000 candela peak intensity; 150 lumens Runs 1.75 hours Uses 2 3V CR123A batteries included. Includes Remote switch. Mounts directly to MIL-STD 1913 Picatiny Railand weapons with Glock style rails. Limited Lifetime Warranty