Solar LED String Lights , BMOUO 20ft 30leds Waterproof Crystal Ball Outdoor String Lights Solar Powered Globe Fairy Lights for Garden Yard Home Fence Path Landscape Decoration Chrismas Day for Indoor and Outdoor (Warm White) Environmentally friendly solar powered LED string lights for gardens, patio, lawn, yard, porch, garden fence, Christmas trees, camper and parties The solar panel charges the battery during the day by converting solar energy and the sensor will turn on the lights automatically at night The charging can only be finished under ON mode, please switch on the lights by pressing ON button at the back of solar panel before charging The lighting performance was decided by the volume of solar energy converted and stored, it may vary with the intensity of sunlight, geographic locations, weather conditions and shift of seasons There are 2 modes to choose from, the lights can stay on steadily or blinking at once by your favor