Nitecore Explorer Series EC4 1000 Lumens Die-Cast Flashlight Searchlight Torch With 2 Pieces NL183 2300mAh 18650 Batteries The world's first die-cast flashlight Maximum output of up to 1000 lumens 5 brightness levels and 3 special modes available Waterproof in accordance with IPX-8(2 meters submersible) Solid lightweight aero grade aluminum alloy construction