Warm tips: This product does not store energy, please make sure to use it in direct sunlight and clear water, cloudy or covered may stop working or spray water discontinuously. It is recommended to change the water once a week, clean the filter cotton frequently and remove the pump cover to clean the rotor inside. Prevent the water pump from clogging. Do not leave the solar fountain in direct sunlight without water, it may damage the pump. The surface of the solar fountain may whiten with prolonged use, weekly cleaning and use of Birdbath Fountain Maintenance is recommended. If you feel that the water spray is too high, you can use a nozzle with a shorter spray height or no nozzle. We also recommend that you use a deeper and wider birdbath. Product specification: Solar Panel: 7V / 1.0W Solar Panel Diameter: 16cm (6.3 inches) Brushless pump input: DC 4.5-10V Maximum pump flow: 150 L / H Maximum water spray height: 70cm(27.55in) Delay: ≤3s