Viridian CTL Universal Compact Tactical Lightbr Universal mounting system three modular rail sets included br Ambidextrous activation and easy custom operating modes for strobe rate and light output br 100 lumens continuous light output and 140 lumens strobe mode br Made of 6061 aircraft grade hard-anodized aluminum front and rear covers in high strenght Zytel polymer Weighs 24oz br 60 minutes of constant taclight runtime