Bigcheck 2000 Lumen C6 Cree LED Flashlight Torch Bright Flashlight 3 Mode Torch (black) All-weather flashlight has 'Zoom-Focus', 3 light modes 100% Brightness, 50% Brightness & Strobe 3 switch modes LED flashlight : high / low / strobe Powr Source: work with 1 x 18650 Battery.(Not included)