1. Phenomenon: All LED lights are blinking;
Problem: Poor contact;
Solution: Re-fix or plug in the loose wire and power interface;
2. Phenomenon: The LED is dim;
Problem: The switching power supply and LED voltage labels are inconsistent;
Solution: Replace the power supply, which is consistent with the LED voltage labels;
3. Phenomenon: The LED lights on some lines are not lit;
3. Phenomenon: The LED lights on some lines are not lit;
3. Phenomenon: The LED lights on some lines are not lit;
3. Phenomenon: The LED lights on some lines are not lit;
3. Phenomenon: The LED lights on them are not lit;
Question: 1. Is the wiring connection direction correct;
2. Is the power output wiring correct;
3. The power cord is plugged in reverse and reverse;
Solution: 1. Replace the cable direction and re-plug;
2. Make sure the red wire is connected to the positive electrode and the black wire is connected to the negative electrode;
3. Find out the partially inserted and reversed lines and re-connect;
4. Presentation: All LEDs are not illuminated;
Question: 1. No voltage output of the switching power supply;
2. Is the output wiring of the switch power supply correct?
Solution: 1. Try to connect to the power supply input terminal of the switch power supply;
2. Is the positive and negative poles of the power supply wiring correct?
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