These exceptionally durable and powerful lights offer multiple lighting modes from a variety of power sources. There's no task that these lights can't handle!The Twin-Task® lights are the only machined aluminum flashlights with a patented xenon/LED combination for unmatched brightness and exceptionally long run times. Users can easily select the best light source and intensity for the task at hand. The Twin-Task® lights feature a micro-faceted reflector for a smooth, perfectly focused beam. Includes an ultra-bright xenon bulb plus six ultraviolet LEDs for UV detection of fradulent documents, forensic investigations and for detecting engine and HVAC leaks. Flashlight Features: Powered by 3 "C" alkaline batteries A high-pressure xenon bulb; plus 6 ultraviolet 100,000-hour life LEDs 57 lumens typical with xenon bulb Six 390 nanometer UV LEDs - for HVAC & auto leak detection Up to 5 hrs. run time (xenon); up to 160 hrs. (3 LEDs); up to 100 hrs. (6 LEDs) 1.68 (D) x 9.02 (L) 1 lb.