USPRO Solar Lawn Light Water Drop Shape Colorful Light for Outdoor Garden Courtyard Decoration Waterproof Lamp String White Decorative Solar Light String in Water Drops Shape Note: Make sure that the switch is turned on while charging and the light will turns on automatically in dark. Only solar powered, no additional electricity or wiring is required. Easy installation for your lawn or garden, perfect as garden decoration, esp. tree decoration. The use of LED lamp lighting saves energy; in rainy days also can be continuous lighting for several nights without other energy supply. Apply to low voltage and direct current 12V, makes it safe and harmless to human and animals. The lamp body adopts the design of high strength structure, with high wind resistant and anti-external force.