Feature: 1. Dual Power Convenience: The solar oxygen pump is designed for versatility, featuring both AC and DC capabilities. With its pure copper core and high-quality lithium battery, it boasts a cycle life of up to 500 charges, making it a reliable choice for your aquatic oxygenation needs. 2. Compact and Powerful: Despite its small size, the solar air pump delivers impressive performance with low noise levels, high air output, and an extended lifespan. It can run continuously for up to 20 hours on a full charge, ensuring your aquatic life receives the oxygen it needs without constant supervision. Our solar power pond fish tank oxygenator is equipped with an imported microcontroller for smart control, featuring constant voltage and current charging, overcharge and discharge protection, and a low battery alarm. This high safety factor makes it a trustworthy addition to any fish tank or pond. 4. Versatile Application: Whether for ornamental fish in aquariums, fish farming enthusiasts, corporate or home aquariums, the fishing oxygen pump aerator is ideally suited. It excels in emergency oxygenation during power outages and is perfect for outdoor fishing and the oxygenation of small aquatic transports. 5. Emergency and Outdoor Use: Designed for both convenience and reliability, the solar pond pump is an essential tool for emergency oxygenation needs during power outages and for oxygenating water in outdoor fishing and small-scale aquatic transport scenarios, ensuring your aquatic life thrives in any situation. Specification: Origin: Mainland China Solar panel: 5V 290MA Battery: 18650 lithium battery 3.7V 2200mAH Oxygen pump: DC micro air pump 1.8V 150MA Noise: 50dB