1450 lumens harnessed through a road specific lens projects a beam pattern combining both spot and wide beams, tailored for tarmac AKTIV automatically dips Strada’s beam when it detects oncoming car headlights, so motorists can still safely see where the cyclist is on the road The Strada RS, Road Sport, is an essential part of the road cyclist’s equipment. With improved side illumination, the Strada RS is your personal domestique Included remote switch completes this road ready package 236 hour run time Comes with QR handlebar bracket, fast charger, QS guide