The Petzl Swift RL rechargeable headlamp has a power of 900 lumens and is classified as the most powerful of the French brand's compact fronts, designed for dynamic outdoor activities such as trail running, mountaineering or cycling. Swift RL is compact and lightweight with a weight of only 100 grams, equipped with a removable and washable band divided into two parts to offer you excellent hold and stability on the head. Characterized by RL Reactive Lighting technology, the brightness is automatically adjusted using a special sensor, adapting to the ambient light and your needs. Among other things, thanks to this brightness sensor, the use of the battery is also optimized. If you set the front in Reactive Lighting mode (simply by holding the start button) you will get a maximum power of 900 lumens which will allow you to see up to 150 meters for a range of up to 30 hours and a guaranteed minimum of 2 hours. In standard mode instead, the power will be 300 lumens, for a distance of 55 meters and a range of up to 40 hours. You can also set it to 100 lumens to obtain maximum autonomy and a distance of 35 m. Swift RL is also equipped with a 2350 mAh lithium ion rechargeable battery that can be easily recharged using a micro USB cable. How to use it is really easy to use, you have a single button that gives you access to all the functions: On / Off, modes and levels of lighting and lock. Instructions.       Petzl Swift RL rechargeable headlamp