Analysis of LED lamp manufacturer's solution

When the light is off, make sure the circuit is OK. If it is a new lamp, use an electric pen to measure it, or install an incandescent lamp to see if there is voltage in the circuit. After making sure the circuit is OK, you can start the following maintenance.

1.Drive problem

The electric light is not on, and it is likely that the driver is a problem. Light-emitting diodes have high requirements for current and voltage. The current and voltage are too large or too small to light up normally. Therefore, constant-current drivers, rectifiers, and step-down devices in the driver are required to maintain use.

If the lamp beads do not turn on after turning on the light, the driver problem should be considered first. A new drive can now be purchased for replacement.