With a rugged aluminum, waterproof and cold resistant housing, the HL55 features a compact design and high intensity performance that is a match for any back country and cave exploration need. These outdoor LED headlamps have four brightness levels plus 900 lumen burst mode with a maximum of 150 hours of run time from one 18650 battery or two CR123A batteries.
Light Output and Run Times
Eco: 10 Lumens for 100 hours
Low: 55 lumens for 29 hours
Medium: 165 Lumens for 10 hours
High: 420 lumens for 3 hours
Turbo: 900 Lumens for 48min