A couple of years ago we bought one of those cheap pre-lit Christmas trees from America’s Largest Retailer. It comes in three pieces which fit together easily. Once the pieces are together, the bottom section plugs into the wall, the middle section plugs into the bottom section, and the top section plugs into the middle section.
This year when we pulled it out, only the bottom section would light up. Rather than buying a new tree, we bought a string of lights to put on it. These lights are supposed to blink in two sections. I plugged them into the bottom section of the tree and strung the top 2/3 of the tree with them. When I first turned them on, they blinked normally for a few minutes, then the top third of the tree stopped blinking, leaving the middle section blinking all by itself. Yesterday, that section quit blinking too.
At this point I’m thinking that blinking lights are over rated.