Possible reasons and solutions for the light strip not lighting up after being connected

1. Power supply problem
One of the most common reasons why the light strip is connected but not lit is the power supply problem. It may be that the power cord is not plugged in properly, or the power supply is damaged. If this happens, you can try to replace the power cord or power supply to see if it can solve the problem.
2. Aging of the light strip
If your light strip has been used for a while, it may also be due to aging and cause it to not light up. At this time, you need to replace the light strip.

3. Poor line contact
Poor line contact is also one of the common problems. For example, the connector is not plugged in properly, the plug is damaged, the line is not connected properly, and other problems may cause the light strip to not light up. At this time, you can check the connection to see if the connector is not plugged in properly or the line contact is poor, re-plug each interface, if it still does not light up, you need to replace the problem component.
4. Damaged lamp beads
If you find that the lamp beads in a certain area of ​​the light strip are not lit, it may be that the lamp beads are damaged and the problem parts need to be replaced.
5. Controller problem
If you use a controller, it may be that the controller itself has a fault. You can try to replace the controller.
In summary, there are many possible reasons why the light strip is connected but not lit, and the right medicine can finally solve the problem. Before replacing parts or dealing with connection problems, be sure to rule out power problems first. It is recommended that you read the instruction manual carefully when installing the light strip and install it in the correct way. At the same time, avoid disassembling, moving and bending the light strip, because these operations may cause the internal circuit of the light strip to break.