KLARUS XT11 Upgraded Version Super-bright Cree XM-L2 LED Lamp Black 1060 Lumens Waterproof LED Flashlight w/ 18650 Battery Uses a Cree XM-L2 U2 LED, which delivers a maximum output of 1060 ANSI lumens Dual button tail switches for quick, one-hand operation. No need to fiddle with switches in two different places 3 Levels of brightness Perfect for walking, Dog Walking, Camping, Hiking and airsoft IPX-8 Standard (waterproof to a depth of 2 meters)