Innoo Tech 100 LED of string lights are super bright. Long Working Time - With a full charge of 6-8 hours during the day, the battery will provide up to 8-10 hours power at night. With the manganese element added inside the solar battery, it could be charged normally in the winter. Water-resistant - Perfect for both indoor & outdoor use! Just leave it alone and no more concerns. 8 More Light Modes, more choices - Combine with waves, sequential, slow glow, chasing/flash, slow fade, twinkle/flash and steady on.