The cateye rapid x2 usb rechargeable front light the improved rapid x2 front has increased its punch now with 140 lumen output this little light is a great addition for commuters and daytime riding featuring 180 degree visibility cateye rapid x2 usb rechargeable front light ultra bright strip led technology li polymer battery technology up to 80 lumen output complex circuitry for safe charge and discharge usb recharge 2hrs o ring attachment 6 modes high low flashing