Hello, my name is Felix and I have been having problems with LEDs whenever I solder my own wiring harness. The first two or three times the LEDs get powered, they work just fine, however once they get power for more than those two or three times, one of the lights starts flickering. After a little more time, the other light(s) start flickering too. The light that starts flickering first is always the farthest one from the power supply and it always ends up never working again. This has been a very frequent problem of mine and it really annoys me. Thank you in advance for replying.