The light string is a decorative light composed of solar powered and LED lights, Easy to install, waterproof and sunscreenThrough the ON/OFF switch behind the solar panel controller, Let the solar panel fully charge automatically against the suns rays, Automatically lights up at night.Set the desired lighting mode through the MODE switch on the back of the solar panel controller.Waterproof String Lights: Solar panels and Globe bulbs are waterproof design. It can work normally even in rainy days. No need to worry about bad weather. Perfect for outdoor use, creating a pleasant atmosphere for courtyard, garden, lawn and tent.Suitable for Multiple Scenarios: No plugs, No batteries. The product is outdoor balcony lights are the perfect decoration for trees, windows, trampoline, terrace, pergola, bistro, backyard, deck, barbecue, umbrella, dinner, Party and Christmas decor.Size: 5 meters of 20 lights; 7 meters of 50 lights; 12 meters of 100 lights