Petzl Swift RL with Reactive Lighting Headlamp Review

With its 900-lumen brightness and total weight of only 100 g, SWIFT® RL is the most powerful of the Petzl compact headlamps. With its REACTIVE LIGHTING® technology, a sensor analyzes the ambient light and automatically adjusts brightness to user requirements. The headband is reflective for night visibility. Here are some of my thoughts on the headlamp and how it works for running in the dark! #irunfar