Rugged. Reliable. Rechargeable. The DUO headlamp line features a robust construction with an IP67 rating and up to 1100 lumens of power. The design incorporates FACE2FACE functionality that automatically dims the headlamp brightness when users are facing each other, CONSTANT LIGHTING for ensured output and stable battery drain, and universal helmet mounting. The DUO is perfect for team operations in demanding environments. For more information, go to https://www.petzl.com/US/en/Professional/High-performance-headlamps
