LED fairy lights are miniature string lights that feature tiny LEDs shining on a thin, flexible metal wire. They usually come in shorter strands and are battery-operated, which lend them extraordinary flexibility and convenience of use. The delicate string lights can be bent to accommodate any shape and fit into tiny spaces, opening up opportunities for creative, breathtaking designs. Fairy lights are typically seen in single colors (mostly warm white), but can also be in other color options.

The advent of these slim decorative lights was attributed to the use of LEDs which are available in very small semiconductor packages. LEDs utilize only a fraction of the energy consumed by incandescent lamps to produce an equivalent lumen output. High energy efficiency allows the fairy lights to deliver a long duration of operation with battery power. Through bandgap manipulation and/or phosphor conversion the semiconductor devices can be designed to emit light in any colors directly from the device package without using color filters. LEDs have superior controllability. They provide instantaneous response to switching or dimming operation. Therefore, a variety of lighting effects can be created with LED fairy lights.

Put the lights inside of lanterns, mason jars, colorful glass vases to create magical table centerpieces and room decorations. Wrap or twist fairy lights around a wreath, garland or ornament to bring ample decorative flair to an event. Use fairy lights as craft lights, wedding lights or costume lights to create a mesmerizing glow for indoors or out.