Rechargeable LED (light emitting diode) headlamp. Features a 5.5-hour runtime along with an ultra-bright 850-lumen output. Powered by a reliable 3000mAH rechargeable battery, included. Includes slide focus, three operating modes, and a pivoting head for added flexibility on the job. Ideal for hands-free use. Functions: High/Low/Flash/Focus Beam. Light output: High - 850 lumens/Low - 280 lumens. Run time: High - 5.5 hours/Low - 10 hours. Beam distance: High - 105 meters/Low - 55 meters. Includes a USB (Universal Serial Bus) charging cable and Comfort Adjustable straps. Water resistant. Limited lifetime warranty.