Features 1、【Solar Powered Air Pump】The solar air pump is suitable for fish tank, small pond, aquarium, etc., which helps restore the oxygen level in water to keep the fish and pond life. Low noise working and create even oxygen. 2、【Solar and DC Power Supply】The air pump supports solar panel power supply, or 5V DC power supply like power adapter, power bank, car charger, laptop. It/u0027s not only easy and safe to use, but also energy saving. 3、【Automatic Emergency Oxygen Supply】The solar air pump has a function of automatic emergency oxygen supply after power failure, that is, when the external power supply is normal, the external power supply is preferred, and the internal battery can be charged. When the external power supply is disconnected, the air pump will automatically switch to battery power supply. 4、【Supports 2 Working Modes】Continuous Oxygen Mode-- long press the button for 2s to start, the air pump will automatically enters continuous oxygen mode, the green light is long on; Intermittent Oxygen Mode-- short press the button to switch to intermittent mode(work 10s and stop 10s), the green light slowly flashes. 5、【With 2 Air Bubble Stones】With 2 air bubble stones, the solar air pump can increase oxygen level of the fish pond quickly, keep pond clean and keep fish more active. Features: 【Solar Powered Air Pump】The solar air pump is suitable for fish tank, small pond, aquarium, etc., which helps restore the oxygen level in water to keep the fish and pond life. Low noise working and create even oxygen. 【Solar and DC Power Supply】The air pump supports solar panel power supply, or 5V DC power supply like power adapter, power bank, car charger, laptop. It's not only easy and safe to use, but also energy saving. 【Automatic Emergency Oxygen Supply】The solar air pump has a function of automatic emergency oxygen supply after power failure, that is, when the external power supply is normal, the external power supply is preferred, and the internal battery can be charged. When the external power supply is disconnected, the air pump will automatically switch to battery power supply. 【Supports 2 Working Modes】Continuous Oxygen Mode-- long press the button for 2s to start, the air pump will automatically enters continuous oxygen mode, the green light is long on; Intermittent Oxygen Mode-- short press the button to switch to intermittent mode(work 10s and stop 10s), the green light slowly flashes. 【With 2 Air Bubble Stones】With 2 air bubble stones, the solar air pump can increase oxygen level of the fish pond quickly, keep pond clean and keep fish more active. Specifications: Solar Panel Power: 5W Solar Panel Voltage: 6V Battery: 3.7V/ 16.65Wh Input: DC5V/ 1A DC Charging Time: 4-5 hours Solar Panel Charging Time: 7-8 hours Solar Panel Size: 22.5 * 19.5cm Power: ≤1W Air Pressure: 0.02mPa Flow: 1.8L * 2/ min Air Pump Cable Length: 1M Power Cable Length: 3 meters Packing List: 1 * Solar Panel 1 * Air Pump 2 * Oxygen Pipe 2 * Air Stones 2 * Check Valve 1 * USB Charging Cable 1 * Users Manual(English & Chinese) Package List 1 * Solar Panel 1 * Air Pump 2 * Oxygen Pipe 2 * Air Stones 2 * Check Valve 1 * USB Charging Cable 1 * Users Manual(English & Chinese)