Solar and USB Charging] The string lights are powered by solar panels, saving all electricity bills. On a sunny day, it can be used for 8-12 hours on a single charge for 8 hours. If it is cloudy or rainy, you can use the USB port to charge the panel, and it can be used in winter when there is not enough sunshine. [4 Light Modes & Auto On/Off] The solar garden light has a built-in twilight sensor that automatically turns on at night and off during the day. Press the Mode button on the back of the solar panel to switch between 4 lighting modes: one constant light mode and three flashing modes (breathing mode, fast strobe and slow strobe). For all your ambiance needs. [Safe & Waterproof IP65] Our G40 solar string lights use LEDs instead of tungsten bulbs for longer life. And use clear plastic instead of glass to protect yourself from dangerous debris. Designed with a sealed socket for safe use in all weathers. [2 Modes Of Installation And Remote Control] The solar panel can power the