Lighting Modes and 4 Brightness Levels: This string lights has 8 lighting modes: steady on, combination, in wave, sequential, slow glow, chasing/flash, slow fade,twinkle/flash. You can freely adjust the lighting mode you like, and adjust the brightness freely: 100%-75%-50%-25%. Fairy lights are bright, soft and glare-free, creating a dreamy atmosphere, perfect for decorating weddings, parties, birthdays, anniversaries, Thanksgiving, Halloween, Christmas, and bring you a unique experience.