The Klarus XT11 Flashlight w/ Dual Button Switch is a four mode flashlight built for lightning-fast one-handed operation and easy access to the strobe mode. This tactical flashlight offers three light levels plus a flashing strobe mode, a maximum output of 600 lumens, powered by two CR123A batteries. The Klarus XT11 LED Flashlight is built around a CREE XM-L LED bulb with a lifespan of 50,000 hours, so the flashlight will last as long as you do. The Klarus XT11 LED Flashlight is made for easy operation, with a forward-mounted tactical switch with momentary activation. An attached Clip for makes for easy hands-free operation, and the Klarus XT11 Flashlight is waterproof to IPX-8 Standard (2 meters), and a stainless steel strike bezel is included, which can be unscrewed and removed for attaching accessories like colored filters for hunting or map reading. This compact tactical light puts put a remarkably smooth beam with a perfect balance of beam throw and spill, its output digitally regulated to keep a constant brightness.