When we check, if there is something wrong with the power supply of the lantern, we need to see if the plug and socket of the lantern are loose. If it is loose, press the plug hard. If there is something wrong with the household circuit at home, resulting in the series connection of colored lights is not bright, then it is necessary to find a professional to check and repair.

If there is something wrong with the quality of lanterns, we need to replace the series of lanterns, just replace the lanterns with problems. If most lanterns have problems, there is basically no need for maintenance. It is more worry-free to make a string of new colored lights directly.

The reason why the rotating lantern doesn't light up

1. It may be that the packaging protection measures are not in place, resulting in collision damage in transportation engineering.

2. There is a phenomenon of virtual welding in the welding part of the bulb, which causes the solder joint to fall off after vibration, thus causing the light string to be unlit.

3. The fuse tube with unstable voltage is blown, causing the light string to be on.

4. The light bar chip is damaged due to excessive extrusion during installation, which leads to the unlit light string.

If the indicator light is on, it means that the power supply of the lantern is good, but there is something wrong inside the lantern. If the indicator light is not on, there may be a problem with the power supply of the lamp.