With 900 lumens brightness at only 100 g, Swift RL is the strongest of the Petzl compact headlamps. With Reactive Lightning technology, a sensor analyses the ambient light and automatically adjusts the brightness to the user's needs. The headband is reflective for night vision. It is constructed in two parts and offers excellent stability for dynamic and dedicated activities such as mountaineering, trail running or skiing. Swift RL is intuitive to use and has a single button for easy control of all lamp functions. Rechargeable, it has a five-stage display for accurate monitoring of the battery charge status.