The cateye rapid x3 usb rechargeable front light the rapid x3 front is latest addition to the series utilising two led strips to push out 300 lumens with the continued 180 degree visibility you can be sure yoursquore seen from all angles cateye rapid x3 usb rechargeable front light ultra bright strip led technology li polymer battery technology up to 300 lumen output complex circuitry for safe charge and discharge usb recharge 3hrs o ring attachment 6 modes high