POPOSOAP 4W Solar Pond Aerator, Solar Air Pump for Pond with 2200 mAh Battery Backup, 3 Operating Modes & Separate Solar Panel - Ideal for Small Outdoor Ponds, Aquarium and Hydroponic Systems Separate Solar Design The solar panel is independently separated from the solar pond aerator - no additional cable connection required. The solar pond aerator is perfect for small garden ponds, provides fresh oxygen for fish and ensures safe use without cable contact with water. So you can care for the pond ecosystem without worry. 2200mAh Battery Backup for Continuous Oxygen Supply This solar powered pond aerator has a built-in 2200mAh battery. During the day, the solar panel powers the air pump and charges the battery; at night or in cloudy weather, the battery takes over the power seamlessly. A permanent oxygen supply to your pond is therefore always guaranteed. 3 Customizable Operating Modes for Any Season: The solar pond oxygenator is equipped with 3 operating modes: strong bubble mode, gentle bubble mode and cyclic bubble mode. The modes can be adjusted according to the seasonal requirements - the strong mode is suitable for summer, the cyclic mode for winter and thus fits perfectly with different pond care scenarios. Easy installation and operation without expertise - no electrical expertise required - all accessories are fully included, making installation and operation easy. Additional power and battery indicator lights ensure that you see the operating status of the device at a glance. OUTDOOR DESIGN WITH HIGH VENTILATION EFFICIENCY: Pump housing and solar panel are designed separately - optimized for long-term outdoor use. The device construction guarantees efficient ventilation and thus ensures a stable increase in the oxygen content in the water even under harsh outdoor conditions.