Indoor curtain lights are typically powered by USB, battery packs (commonly 3×AA), or standard AC plugs/adapters. Some models offer multiple power options across different versions.
Many curtain lights sold for indoor/outdoor use use IP44-rated wiring or connectors, meaning they resist splashes and light rain. Other sets are described for indoor use only, so check the product listing to see which components (wiring, controller, or power pack) carry the weather rating.
Many curtain lights include a built-in timer—commonly a 6‑hour on / 18‑hour off cycle—and a memory function that saves the last lighting mode so the lights return to that mode when powered back on.
Listings show multicolored (colorful) and warm/white light options, with some pastel variants. Wire and cord colors include clear or white and, in some sets, colored cords such as yellow.