Lumen Tactical LLC

1) To perform a bridge test, please unscrew the tail cap from the light. 2) With battery/batteries installed, use a needle nose pliers to touch one e...

1. Make sure the tactical ring near the end of the light is fully tightened, or it will prevent the tail cap from making contact with the light body. ...

Which brand and battery type are you using? If it’s easier, feel free to send us a picture. Can you please try the following troubleshooting steps:   1. R...

The original battery is likely damaged due to over-discharge. To prevent it from happening again. we recommend loosening the head of the light for 1/4 turn ...

1. Remove the battery pack from the light. Plug the wall charging adapter to the battery. The small blue indicator shall start blinking. 2. Let the batt...

The TM28 will have to be set to its selected battery type to push the 6000 Lumens.  Please see below: Battery selection: Upon each battery installation, ...

Symptom: The flashlight display "Charging Error" message when the buyer is trying to charge the batteries Possible causes: 1. Batteries ar...

**** This is not to be sent as a troubleshooting notes ******** 1) When battery is low, the light loses high or UV settings first. Always ask the buyer ...

It's possible that the THUMB device is in Lockout mode, which is designed to prevent accidental activation in pockets or bags. When in Lockout mode, all...

This model has two modes: Demo mode and Constant-on mode. In Demo mode, the light turns off automatically within 30 seconds of activation. To change mod...