Virtually indestructible LED regulated to maximize output and runtime. Tactical-level output with TIR lens for close- to medium-range applications. Quick-detach rail clamp. Submersible to 22 meters. Accepts optional pistol grip and long gun forend switches. Construction High-strength aerospace aluminum with Mil-Spec anodizing; impact-resistant polymer; coated tempered window. Includes high-energy 123A batteries with 10-year shelf life