This product is a 20W 365nm/395nm ultraviolet detection light used for detecting invisible stains such as urine and pet stains. It is made of aluminum alloy, has a single mode of high intensity, and is powered by a rechargeable 21700 battery. The product comes with a USB charging cable and has dimensions of 145mm in length, 45mm in head diameter, and 31mm in tail diameter, weighing 185g.