With a whopping 900 lumen brightness and weighing just 100 grams, Petzl’s Swift RL is the most powerful of their compact head torches. Designed with trail running, mountaineering and skiing in mind, the Reactive Lighting technology automatically adjusts the brightness and beam pattern to your requirements. The headband has a two-part construction for comfort and stability, with reflective stitching for improved low-light visibility. Clean and streamlined, a single button controls all functions, while the lock mode avoids it turning on accidentally. Rechargeable via micro USB, a five-level gauge makes it easy to monitor how much power is left.