I have a simple string or two of coloured lights along the front of my house. End of effort. After 10 years in position, they are no longer coloured, and after running in a new cattle dog, they are no longer connected to the power supply. But they are still up there and look great when the sunlight hits them a certain way, but are completely useless at night. Must fix them up.
I have 2 strings of icicle lights for the camper, which are solar powered and they go up from Dec 1 onwards. Peg them onto the awning, shove the solar panel into the ground angled whatever way gets sun and they just work. Can be set to Constantly OFF / Flashing / Constantly On. When they run out of sun, they turn on. It's an alternative to other lights around the camper, but don't expect to read by them.
Kit_e