Flexible Power Supply & 8 Modes Settings: Our LED string lights is specially designed with USB plug power supply, compatible with USB port, power bank, computer and so on. Also flexible LED fairy lights modes for your choice: Combination, In waves, Sequential, Slo-glo, Chasing/flash, Slow fade, Twinkle/flash, and Steady on. High Quality & Waterproof: 300 Warm White LED lights with high brightness. 100% copper wire with insulation coating curtain lights with UL certified, leads to 5V safe output by USB plug. IP65 Waterproof Grade, safe to use indoor and outdoor. 8 Modes: There is a button on the adapter, this Curtain String Light provides 8 lighting modes: Combination Mode ,Flashing , Interval Flash , Interval Light , Interval Twin Flash , Overall Call Light Mode , Interval Flash ,Steady on. Memory Function: The controller has memory function, which could recover from the previous setting mode when you restart. Satisfaction guarantee: focus on indoor and outdoor LED lighting with rich lighting experience, we provide customer with high quality product, 3 year warraty and friendly customer service.