Compact and efficient, the Streamlight Stylus Pro USB UV Rechargeable Penlight is the one of the most convenient carry UV lights on the market! Using its 400 nanometer UV LED, this penlight is able to generate effective 325mW UV light for up to 2 and a half hours on a single charge. Recharging your penlight is simple, with its internal Lithium Ion battery able to be charged via a micro USB charging port located just below the head in just 2 and a half hours. The charging port is accompanied by a dual color charging status indicator that glows red while the Stylus Pro is charging and green once charging is complete. The penlight's anodized aluminum body and gasket-sealed glass lens make it impact resistant from up to 1 meter and earn it an IPX-4 rating in water resistance. The UV light is easily distinguished from its Stylus Pro Series relatives by its unique purple sleeve and comes with a removable pocket clip, a micro USB charging cord with a 120V AC adaptor and a nylon holster for safe carry.