BESTSUN 20 LEDs Waterproof Crystal Water Drop String Light, Solar Powered Decoration Light for Indoor Outdoor Gardens Patio Homes Christmas Party, 15.75 Feet, Yellow Eco-Friendly: Powered by solar energy, no pollution to the environment. With built-in rechargeable Ni-MH batteries, it charge automatically during daytime and light up at night time without any external power source. Beautiful designed, water drop shape and colorful. It creates a perfect atmosphere when the 20 led light on and flash. Long working time: It can work 8-10 hours under constant light on mode or under flash mode if the solar panel getting 8 hours fully charge. Waterproof and flexibleIts suitable to use in indoors and outdoors even in rainy days and it could be formed to any shape because of the flexible connecting wire. Easy to Install and Use: Only the lights , 2 simple buttons (ON/OFF and MODE switches) and 1 stake, It takes only few minutes to install, and easy to use.