faerie lights

Fairy lights are commonly powered by plug-in (mains) electric, USB, or AA batteries. Some strings are direct plug-in, others use USB power, and some battery sets require or accept AA cells.

Some fairy lights and curtain sets are specified for outdoor use and list IP44 waterproofing. A few micro LED strings are described as UL-certified for indoor or outdoor use. Always check the product listing for the stated IP rating and any UL or outdoor-use notes.

Look for UL certification or UL-listed adapters on product descriptions. Some listings also note IP44-rated adapters for outdoor use—check labels and listing details for these marks.

Many sets offer multiple modes: constant-on plus combination, sequential (in‑wave), slow glow/slow fade, chasing/flash, twinkle/twinkle‑flash, and other flashing or fading effects. Some strings provide RGB color‑changing output, remote controls, or built‑in timers.

Power options include plug-in electric, USB power, and battery operation (examples show 2 AA or 3 AA cells). Control options shown include simple on/off switches, built‑in timers, and remote controls on some sets.

Battery-operated sets in these listings use AA cells—examples show 2 AA (installed) and 3 AA (required or optional, not included).