This is our third year with a pre-lit RGB LED tree. Setup is easy. But this year after a few minutes some lights started flickering erratically.
These bulbs are in series and the controller sends data down the line to let each bulb know what color it should be etc.
so if one goes bad it can effect the functioning of bulbs down stream.
Fortunately i found sound advice. set the tree to have all one color and watch for the first bulb to flip to the wrong color. Replace that bulb and try the process again.
Wow we did that and on the first try we found the one bulb that was causing the problem.
So we’re all set to hang ornaments!