Features:High-performance LED is regulated to maximize tactical-level output and runtime per set of batteries.Simply twist the self-locking selector ring on the dual-spectrum V-series head to switch between flashlight and strobe mode.Weatherproof—O-ring and gasket sealed.Construction—High-strength aerospace aluminum with Mil-Spec anodizing; coated, tempered window.QD Mounting system-Integral thumbscrew clamp for Picatinny rails.Remove the head, battery put from front side.Shockproof and WaterproofSwitch assembly comes with two different operation methods:Click ON/OFF pushbutton SwitchPlug-In Remote Tape SwitchWhite-light and Strobe Output Ver.ADM Weapon Mount securely attaches to a picatinny railPowered by 2*CR123A(3.0V) or 2*16340(3.7V) Batteries(Not included)