The tracker at under 15cm in length is a small and compact rechargeable led flashlight using an advanced q4 led this compact flashlight offers a high powered long distance beam and output of 180 lumens on high power and 70 lumens on low operating for up to 20hrs ideal for close up applications and extending running times powered by a rechargeable li ion battery with quick recharge 6h and low maintenance the tracker is a superb pocket torch suitable for various applications