Solar Powered, Saving Energy and Money These hanging tree lights come with built-in rechargeable solar batteries, eliminating the need for additional electricity costs. After being fully charged, the continuous working time at night can reach 8-10 hours. High Quality Waterproof Made of sturdy glass and stainless steel, these outdoor solar lights can withstand sunlight, rain, snow, ice and wind even in the harshest weather conditions. Combined with well-sealed solar panels, these outdoor solar lights are highly waterproof and you don't have to worry about water leakage or frequent replacement. Environmentally friendly and non-toxic materials, harmless to your health. Easy to use and easy to install These solar crackle glass lights are powered by solar energy and do not require any power cord or electrical outlet, making them very convenient to use. Just take the plastic protector, open the cover and slide the switch to "ON" to receive direct sunlight, turn it on at night and stop