GearLight S300 Rechargeable LED Bike Light Set Support & Troubleshooting

Operation Guide


  • If the tail light does not turn on:

    • Press and hold the power button for two seconds.

  • If the light does not turn on or works intermittently:

    • Make sure the power button is not stuck.

    • Recharge the light only if no damage is observed.

  • If the light does not charge:

    • Check the USB charging cable connection and the power source.

    • Note: A computer in sleep mode will not charge the light.

    • If the problem persists, replace the USB charging cable.

  • If the headlight mount will not hold:

    • Tighten the mounting screw. Make sure at least one of the two rubber strips is located between the handlebar and the mount.


  • When the lights are not in use, store them with a moderate level of charge and in a cool place away from flammable materials. Once every few months, discharge the batteries fully and recharge.

    How-To Video

    • Coming soon!