GearLight S50 UV Mini Flashlight Support & Troubleshooting

Operation Instructions

  1. Unfasten the tail cap.
  2. Insert 1 AAA battery with the positive (+) end first.  Always install batteries with the positive (+) end facing the LED end and the negative (-) end facing the tail cap end of the flashlight.
  3. Refasten the tail cap.
  4. To turn the flashlight on, press down firmly on the red power button.



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

    • Replace the batteries.

    • Make sure the tail cap is twisted on tightly and batteries are inserted correctly.

  • If the flashlight flickers:

    • Make sure the tail cap is twisted on tightly.

  • If the light appears dim or faded:

    • Replace the batteries.

  • If the problem persists, possible LED Failure.  Contact GearLight for a replacement.


  • Inspect the flashlight monthly and carefully remove any damaged batteries and clean any corrosion.  If the flashlight is used less than once a month, remove the batteries between uses.  Lubricate all threads and rubber O-rings with petroleum jelly twice yearly.

  • For instructions on how to clean corrosion on battery contacts, click here.

    How-To Video

    • Coming soon!