The new standard in urban bike lighting the usb rechargeable volt 150xc delivers a constant 100 lumen output to see by and flashes at an ultravisible 150 lumen when you really need to be noticed cateye volt 150 xc front light features bull usb rechargeable front light with up to 150 lumen output bull integrated li ion battery bull side visibility bull usb recharge bull flextight handlebar bracket bull modes high low flash bull runtimes 100lm 2 hrs 30l