Sunnydaze Outdoor Solar Pump and Panel Fountain Kit with Battery Pack and LED Light, 65 GPH, 47-Inch Lift Overall panel dimensions: 9 inch long x 7.5 inch wide. Kit includes 6 spray heads and 2-inch extension tubes for up to 47-inch high jets. The included LED light had a convenient feature where it turns on/off at night automatically. The solar on demand technology runs in and out of the sun. The sun is needed to charge the panel but then the "on demand" can keep the pump running when the clouds come out. To run on battery mode simply press the Battery On/Off button. The battery will now power the pump. If it is dark or cloudy, the battery can run the pump; just push the battery on/off button to run on battery power. If fully charged, the batteries will power the pump for up to 4 hours. When the batteries are depleted, you can press the battery on/off button to switch to sun power. Sunnydaze Decor backs its products with a 1-year manufacturer's warranty.