1LED Light Source: The top quality LED light source is used to provide a more pure UV lighting source, the powerful black light is completely suitable for professional use. 2Filter Optical Lens: This flashlight has a black filter optical lens to eliminate 99% of the visible light to display pure UV beam. 3Adjustable Gear: High brightness and low brightness are adjustable, with constant brightness, over current, overcharge and discharge protection, intelligent thermal management, energy saving and high efficiency. 4Good Heat Dissipation: High strength aviation aluminum alloy and hard anodizing are used for abrasion resistance, with strong impact resistance, good heat dissipation, anti skid design and longer service life. 5Purpose: Portable black light lamp can be used for dog and cat urine detection, bedbug and scorpion discovery and spraying, gas leakage inspection of air conditioning and automobile circulation system, anti counterfeiting and currency detection, ink and glue curing, ground object capture and NDT equipment, fluorescent reflection of special materials, and artwork identification.