Eco-friendly energy: Solar oxygen pump, no need for extra batteries and plugs. Environmentally friendly and economical. Backup battery: store power during the day to ensure that the oxygen pump works at night. Adjustable Angle: The angle of the solar panel can be adjusted to get more sufficient solar energy. Solar panels can be clipped to the ground or fixed to the wall. 3 working modes: strong bubble/soft bubble/on/off cycle. Fully meet various occasions and needs. One machine for multiple purposes: It is widely used in various fish tanks, pools, ponds, and fish tanks to supplement fresh air. Power
