Argo® LED Headlamp The Argo features state-of-the-art C4® LED technology for the long life and reliability of an LED with the brightness and range of a conventional bulb. It offers three digitally controlled brightness levels, battery indicator, a durable compact case, and rubber & elastic head straps for use with hard hats. C4® LED is 2X brighter than a Super high-flux LED Three (3) digitally controlled brightness levels: High – Up to 1,300 candela (peak beam intensity), 56 lumens measured system output Medium – Up to 575 candela (peak beam intensity), 25 lumens measured system output Low – Up to 250 candela (peak beam intensity), 11 lumens measured system output. Pushbutton switch – hold three (3) seconds for "blink mode" RUN TIME: High: 7 hours continuous runtime to the 10% output level. Medium:12 hours continuous runtime to the 10% output level. Low: 20 hours continuous runtime to the 10% output level. 90º tilting head Includes elastic head strap and rubber hard hat strap Powered by (3) "AAA" alkaline batteries; LED battery indicator on back 4.75 oz. Available with yellow ABS case