The cateye volt 100 rc front light is perfect for urban riding and commuting great side visibility and the option of a flashing mode make you more visible to other road users the 100 lumen constant beam mode provides plenty of light to see where you39re going even on unlit paths the volt 100 rc is fitted with a li ion rechargeable battery so you don39t have to keep shelling out for disposable batteries charge via a usb port for between 2 and 30 hours runtime depending on the mode ins