Zero Running CostsCompared to other string light that may add up quite a lot to the electricity bill, SUNTHIN solar outdoor string lights will save you money and energy, too. Besides no operating costs, maintenance is usually low Dusk to DawnSolar power string lights turn on automatically when it's dark. Automatically turn off at dawn and start charging by sunlight. No outdoor outlet required, easy to install. Carry them for your camping and outdoor party Shatterproof & WaterproofThe hanging solar lights are made of a shatterproof plastic material that does not crack even by falling from high above the ground. IP44 waterproof solar backyard lights are designed to withstand snowy, windy, rainy, and sunny, making them ideal for outdoor use Simple SetupSolar string lights for outside are easy to set up. There are no outdoor outlets or extension cords needed to plug outdoor lights into, which makes them safe to install Ideal Outdoor LightingSUNTHIN solar outdoor lights