Battery Capacity: 2200mAh. Solar Powered: This solar powered oxygen pump is solar powered, no wires to connect, and is safe for fish and hydroponics. 3 Modes: This solar powered oxygen pump has 3 modes, A speed is continuous high power oxygen pumping mode, B speed is continuous low power oxygen pumping mode, C speed is oxygen pumping for 10 seconds and stopping for 10 seconds to repeat the cycle.
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