My light is plugged in and it is not working.

For micro-USB lights, try using a different micro-USB cable and/or charging block to troubleshoot if it’s the cable or charging block that is not working. If this does not resolve it, please contact us. 

For A/C adapter lights, confirm that the light works on battery power. If it works with batteries, it is most likely a faulty adapter and you can purchase replacement adapters here.