Constellation lamp embroidery _ Constellation lamp making

What should I do if the computer embroidery color-changing light doesn't work?

1. First of all, if the computer embroidery color-changing light doesn't work, you need to check the power cord to make sure that the power cord is in good contact and see if there is an open circuit or a short circuit.

2. Secondly, check whether the power cord is in poor contact.

3. Finally, judge the poor contact. You can connect the contacts of the power cord with copper wire.