The TK35 is a rechargeable, portable flashlight with far-reaching beam distance. It is fitted with a CREE XHP35 HI neutral white LED, which emits a max output of 1300 lumens, and a max beam distance of 480 meters. Powered by two 18650 batteries ( Batteries Not Included ) , the battery holder features Micro USB charging. It has five output levels, plus momentary on strobe and SOS modes, as well as battery level indication. The parallel battery compartment design, flat body and unique dual tail switches make TK35 very suitable for outdoor exploring, camping, searching and caving.