The Tracer Products Tracerline Vio-Blu Cordless, Dual-Head LED Flashlight features a high-output True UV LED at one end and a super-bright blue light LED at the other. As a result, it provides optimal fluorescent response and contrast, regardless of the type of dye. This is designed to ensure all automotive leaks glow brilliantly. With an inspection range of 25' (7.6m) or more, this compact, lightweight lamp allows for easy access into tight, cramped areas. Its corrosion-resistant, anodized body is meant to stand up to heavy use. The Vio-Blu has a service life of 100,000 hours for each LED. It comes complete with a belt holster, three AAA batteries and fluorescence-enhancing glasses.