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Features:100% brand new and high quality.This product is an oxygenator powered by a solar pane and also can be charged by a power adapter. It does not require any wiring, ensuring a quick and easy installation. It helps to increase oxygen levels to fishes when fishing or in fish tanks, aquariums. The solar panel should be placed in a well lit area to ensure enough sunlight exposure.It can be connected to the main unit before the air stones are dropped into the pond.Specifications:Color: whitePackage Size:125*95*80mmSolar panel: 5V 290MABattery: 18650 Li-ion 3.7V 2200mAH replaceablePump: DC micro air pump, 1.8V 150MA Sound: 50dBMinimum air flow: 0.3L/min Air pipe outlet size: Ï4.4MMProduct working power range: 3.2Vï¼4.2V 90MALow power indication voltage: 3.3VFull power indication voltage: 4.0VOver charge protective voltage: 4.2VWorking time on fully charged battery: around 20 hoursCharging method: with solar panel or 5V/1A power adapterPackage List:1 x Solar Air PumpNotesï¼Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!