The Exposure Spark MK.3 Commuter, navigate dark streets & be seen with the Spark Mk.3 Front Bike Light. Running off CR123 batteries while still offering Exposures impressive features including a cable free design, compact waterproof body. A new QR bracket design makes attaching the Spark to your bike quick & easy. Collimated Lens Technology Exposure lights use high tech resin lenses which maximise light collection from the LEDs to produce an optimum beam pattern for cycling & ensures that no light output is wasted. Cable Free Design (CFD) A primary feature, unique to Exposure Bike Lights. Cable Free Design removes the hassle of cables & straps by containing all the lights necessary parts in a lightweight CNC machined case. A stronger QR bracket helps deal with the additional weight on your bars by providing a rock solid attachment. Collimated Lens Technology Exposure lights use high tech resin lenses which maximises light collection from the LEDs to produce an optimum beam pattern for cycling & ensures that no light output is wasted. Waterproof Body CNC machined from aerospace aluminum with a heat transfer design & fully sealed. Manufactured in the UK.