Add a nature-inspired touch to any garden, patio, porch, or backyard with this solar with battery backup water fountain. Simply connect the solar fountain pump to the tube in the fountain, connect the LED light cord and solar pump cord to the solar panel, and place the solar panel in the sun. While using solar-only mode, the pump will run using direct sunlight over the solar panel. To use the battery mode, press the Battery On/Off button and the battery will now power the pump. On the battery mode, the fountain will run for up to four hours on cloudy days or at night. The largest bottom level measures 15.5" diameter x 8.5" tall with a 4" bowl depth, the middle level measures 12.5" diameter x 5.5" tall with a 3" bowl depth, and the top level measures 10.5" diameter x 4.5" tall with a 2.5" bowl depth.