The Spectroline®OPTI-LUX™ 365 is a powerful yet compact leak detection flashlight that provides UV light for optimal fluorescent dye response. It’s ideal for all industrial fluid system applications. The OPTI-LUX 365 works with all oil- and water-based fluorescent dyes. It produces a brilliant glow that makes all leaks easier to find, while slashing valuable diagnostic time. The flashlight even works with difficult-to-fluoresce dirty fluids. “Instant-on” operation enables the flashlight to reach full power immediately, and it provides up to four hours of continuous run-time. The anodized aluminum lamp body reduces corrosion and stands up to years of heavy use. The flashlight comes complete with a lanyard, belt holster, two rechargeable batteries, smart charging cradle with AC power cord and UV-absorbing spectacles, all conveniently packaged in a padded carrying case.