Surefire X300 Turbo Weapon Light generates a tightly focused, 66,000-candela beam pattern. Features intuitive switching allows instant activation without altering grip; turbo beam pattern, 1.50 hours run time on high; aerospace aluminum body is Mil-Spec hard anodized for scratch and corrosion resistance and sealed to make it weatherproof and IPX waterproof to 1 meter for 30 minutes. The X300T-A attachment system permits secure, rapid attachment to and easy removal from Universal and Picatinny thumb screw rail mount.