Features 1、Organic Energy: Solar oxygen pumps, which do not require additional batteries or plugs, are very easy to use and save energy. 2、Adjustable Angle: The angle of the solar panel can be adjusted to get enough solar energy. Solar panels can be attached to the floor or mounted on the wall. 3、3 Working Modes: Strong, medium and weak. Fully meet every occasion and need. You can adjust the working mode according to different usage scenarios. 4、Multi Purpose: Widely used in various fish tanks, swimming pools, ponds, aquariums to increase fresh air, to meet your different use needs. 5、Note: The Package comes with 1 long air pipe instead of 2 or 3 short air pipes. Cut it into 3 pieces as needed and connect with the Y connector. Specifications Item Type: Solar Air Pump Weight: 1230g/43.4oz Material: ABS and polysilicon Use: solar oxygen pump Battery Type: Lithium battery (shipped with built in battery) Battery Model: 18650 Battery Capacity: 2400mAh Output Power: 8w Package List 1 x Solar Oxygen Pump 1 x Hose 2 x Accessories 4 x Screw 4 x Expansion Tube 2 x Bubble Stone 1 x Instructions 6 Small Pieces x Bracket