Exposure Lights Strada Mk12 Road Sport AKTIV Light SystemWith 1450 lumens of light harnessed through the road specific lens to project a beam pattern combining spot and wide beams, tailored for tarmac AKTiv will automatically dip your Stradas beam when it detects an oncoming cars headlights, to avoid dazzling them so they can still safely see where the cyclist is on the road. Allowing you to keep focus on your effort on the road ahead. The Strada RS, Road Sport, is an essential part of the road cyclists