- The power supply loadis overloaded. You can replace it with a high-power power supply.
- The output lineis too long, resulting in a voltage drop. You can try a ring power supply or shorten the circuit to solve the problem.
- The wiring wire is too thin, causing a voltage drop. You can replace it with a thicker wire.
When I tested the LEDs after soldering, I found they could not work. What are the possible reasons?