this post was submitted on 18 Sep 2023
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It's the internal power supply of a bar of LED garage lights. This one made a loud pop when I wired them all up.
The pad ripped off the board.
I was able to fix it by using an empty pin on the same circuit. Soldered a wire through it, then used a butt connector for the input line and the line to the other end of the LED bar.
The pad