Olight M18 Striker LED Tactical Flashlight Variable-output Tailcap-switch with Strobe Cree XML-L2 CW LED, two brightness levels of 150 and 800 lumens, plus strobe through tailcap switch Overheat protection ramps down initial output after one minute Compatible with CR123A, RCR123A and 18650 batteries (not included) Cree XML-L2 CW LED, Two brightness levels of 150 and 800 lumens, plus strobe through tailcap switch Stainless-steel strike bezel that serves as a last resort defensive optio Tailcap switch clicks for constant on, provides momentary activation and strobe through half presses Compatible with CR123A, RCR123A and 18650 batteries (not included) Overheat protection ramps down initial output after one minute