Sponsored: Every headlamp maker faces the same challenge. How to balance brightness with battery life? With the Reactik+ from Petzl you make that decision. When paired with a Bluetooth enabled smartphone and the MyPetzl Light app, you control the balance of battery life to brightness.
Mountain biking or skiing? Crank it up to 300 lumens.
All night ultra? Get the max brightness for the number of hours you'll be on the trail.