There are several possible reasons why the high voltage LED strip might burn out:

  1.  After cutting, the pin might be directly inserted into strip FPC，causing short circuits and damaging the internal circuitry of the LED strip
  2.  When inserting pins and connectors, if they do not light up and are repeatedly connected and disconnected, it can cause the Cooper wires to split and result in a short circuit, potentially leading to an explosion.
  3. In outdoor installations, if the high-voltage LED strip’s tail end is not properly waterproofed, rainwater can enter and cause a short circuit. In indoor installations, if the tail end comes into contact with metal, it can also lead to burn out；
  4. When installing the LED strip, ensure that screws are inserted into the designated mounting slots rather than directly onto the strip itself；

Improper installation will cause short circuits, damage the internal circuitry of the LED strip, leading to burnout. Verify that the wiring is correct and that there are no short circuits.