Wiktionary
n. (label en UK) Small electric lights on a strand which are used decoratively, especially on Christmas trees.
Usage examples of "fairy lights".
The fairy lights of the inn silhouetted Faith in rippling gold and turned her bright cap of hair into a halo.
The fairy lights on the terrace twinkled around her and dazzled through the thin silk of her robe.
Others wandered the gardens, strolling down bricked paths to admire the blooms and the fountains, all lit by the white ball of a winter's moon and the charm of fairy lights.
An open archway upon one side led into a conservatory, where only fairy lights glowed amongst the plants and flowers.
I kept on peeking out my window at night, hoping to see the fairy lights, and when I walked in the woods I went quietly so that I might surprise them.
In a later age, these became fairy lights and were associated with the little people who actually plagued whole generations not only in Europe but also in North America .