• 4 colors in 1 set and 11 modes: 1 string of lights with 4 different colors, warm white and 3 colored lights. 11 lighting modes, including dynamic and static. • USB fairy lights with 100 LEDs: Evenly distributed with 100 high-quality LED light beads, strong and odorless cable. Does not heat up with prolonged use, safe for the elderly, children, and pets. • Timer and memory function: Remote control with 3 timing modes. "6H" - 6 hours on and off for 18 hours; "8H" - 8 hours on and off for 16 hours; "6639" means it will be on for 6 hours and off for 6 hours and then on for 3 hours and off for 9 hours. Memory function to avoid repetitions. • IP44 waterproof fairy lights: Suitable for outdoor use, IP44 waterproof, do not worry about morning dew, can also be used on rainy days. • Fairy lights for outdoor and indoor: Suitable for indoor and outdoor decoration in different scenes. Ideal indoors for rooms, hallways, Christmas trees, etc. Outdoors for gardens, balconies, lawns, terraces, camping, etc. Also perfect decorations for weddings, birthday parties, Easter, Christmas, etc.