The OPTIMAX 400 features a high-output true UV LED that causes dyes to fluoresce far more brilliantly and with greater contrast compared to conventional inspection lamps. It makes leaks easier to spot and slashes inspection time, putting more money in your wallet! Power comparable to high-intensity 100-watt lamps Inspection range of up to 10 feet (3.0 m) or more Pre-focused beam optimizes fluorescent response Budget friendlyfar less expensive than competitive UV flashlights Works with all Tracerline universal/ester and PAG A/C dyes, as well as TP-3400 and TP-3900 series fluid dyes Compact design easily gets into tight, cramped spaces 100,000-hour LED service life Rugged, corrosion-resistant, anodized aluminum lamp body stands up to years of heavy shop use. The OPTIMAX 400 comes with a lanyard, belt holster, batteries and fluorescence-enhancing glasses, all packaged in full-color hanging clamshell.