Fairy lights use tiny LEDs on thin copper or silver wire, so they almost disappear into wreaths, garlands and centerpieces. Because they run on batteries, you can put them anywhere: inside glass jars, on a dinner table or around a mirror.
Battery life is the key spec. Look for a built-in timer, often 6 hours on and 18 hours off, so the lights switch on every evening without draining the batteries. Sets that use AA batteries usually run longer than those using small coin cells. USB-powered sets are a good choice when a charger or outlet is nearby.
Check the length and the number of LEDs per strand. Waterproof sets are useful for outdoor wreaths and planters, and remote-controlled sets let you switch modes without touching the battery box. Remove the batteries before storing the lights to prevent corrosion. Warm white fairy lights suit most decor, while multicolor sets feel more playful for kids' rooms.
Fairy lights pair well with wreaths, garlands and table centerpieces.