I have a pre-lit Christmas tree with LED lights. One small section of the lights will light up but then go off for a few minutes. They will then come back on for a short period of time and go off again. Any clues as to what is causing this and how it can be fixed?
When lights get too hot that trips the fuse until it cools off again. That's all I know about it. I'd contact the manufacturer if you can find them. If they are made in China, that's a good reason to buy American.
Most of these type lights have 2 different fuses...one for intermittent and one for constant. See if you can check that out...otherwise - I dunno!