Help... my trustfire TR-J18 is so dim

[scaru]

Have you tried the paperclip trick?

The "Paperclip" Trick

This is going to be a quick guide on the "paperclip" trick which is used to test whether the problem with a flashlight is in the electronics or a connection issue. So first you remove the tailcap from the light. If the body is one piece scroll down a bit more. [image] Then you take a piece of wire or anything conductive. In the past I have done this with a knife blade, a paperclip (hence the name), or even a fork. [image] If the light turns on then it is simply a connection issue or a sw…