Bike Lights with Smart Speed-controlled Brightness

Overview The Radius™ F1 bike light is the first smart bike light with smooth speed-controlled light output for perfect visibility at any speed. As you ride faster, the light gets brighter; when you slow down, it dims. This helps save battery power. The Radius™ F1 is both speed sensor and light source. And unlike other speed-controlled lights, the Radius™ F1 transitions between dim and bright seamlessly. Stay out longer, explore the roads less traveled, and take your cycling to the next level.                   Everything about this bike light makes city riding safer, more convenient, and more enjoyable. The range of lighting outputs and modes helps you spot and avoid frequent urban obstacles, from potholes and curbs to train tracks and trash. It also makes you more visible to city drivers, including those approaching you from the right or left at intersections. And because city rides often involve pit stops indoors, the easily detachable light makes theft-prevention sim