These fairy lights look fabulous once installed. The solar panels power them for hours. They light up every night without action from me on a big Jacaranda in our backyard. It is still a pleasant surprise to see the tree lit up through the window. Minor gripes: instructions in Chinese; copper wire not on any kind of spool makes handling tricky (solution: put them on your own spool - a fat dowel is better than nothing; no way to charge the battery e.g. via USB; hard wire to panel - no socket.