PowerTac Thunderbolt LED Flashlight CREE XM-L 1050 Lumens The large, smooth reflector and single CREE XM-L U2 LED produces a distance of over 765 yards User interface is seamless using a control ring to switch between the six output modes and the strobe mode LED: One Cree XM-L U2 LED with a lifespan of 20+years of run time 6 Different Output Modes