How to repair the LED strip light that doesn't light up

Repairing issues with LED strip lights typically involves the following steps:

Cut off the power. Before starting any maintenance work, make sure to cut off the power to avoid the risk of electric shock.
Check the power supply. Confirm if the power supply is normal. If the power supply is damaged or the adapter is faulty, try replacing the power supply or adapter.
Check the switch and wiring. Ensure that the switch is in the open state and check for any damage or poor contact in the wiring.
Check the lamp beads. Use a multimeter to check each lamp bead. If any damage is found, try replacing the damaged lamp bead or repairing it using a short circuit method.
Check the wiring of the lighting fixtures. If the wiring of the lamp is poor, it needs to be reconnected to the power supply.
Replace the light strip or driver power supply. If the light strip is aging or the driver power supply is damaged, replace it with a new light strip or driver power supply.
Replace the LED light. If none of the above steps can solve the problem, it may be necessary to replace the LED light with a new one.
When conducting any inspection and maintenance operations, if unsure of how to perform the repair, it is best to seek professional assistance to ensure safety and the correct function of the lighting fixtures.