E-smart Home Chirstmas LED String Lights Wedding Rose Light with 8 Modes Automatic Timer Battery Operated Power: 3 x 1.5V AA batteries (not include). Waterproof, suitable for indoor and outdoor use. Built inn time: light 6 hours and off 19 hours automatically 8 modes with memory chip includes: combination, in waves, sequential, slogs lo, chasing/flash, slow fade, twinkle/flash, and steady Perfect decoration for Valentine's Day, Christmas, Party and other celebration occasions, it can be easily put or hung on walls, windows, doors, floors, trees, grasses etc.