General description This solar fountain is designed for outdoor use, perfect for enhancing your garden or patio. It operates on solar energy, making it an eco-friendly choice for oxygenating water in ponds or fountains. Technical specifications Cell type: 18650 lithium battery Nominal voltage/capacity: 3.7V 1800mAh Solar voltage: 6V 2.5W Solar panel current: 420mA Air pump type: AC air pump Rated voltage: 3.5V Maximum current: 450mA Noise level: 50dB Minimum air flow: 1L/min Operating voltage range: 3.0 V - 4.25 V Over-discharge protection voltage: 3.0 V Overload protection voltage: 4.25 V Working time: approx. 22 hours Product weight: 0.65 kg Product size: 21.5 x 17.5 x 7 cm Usage Connect the air stone to the exhaust vent to increase the oxygen content in the water. Expose the solar cells to direct sunlight, ensuring no shadows obstruct them. Press the power button to start the oxygen pump. Regularly clean the solar cell to improve charging efficiency. Other information This product