The oxygen pump adopts a copper movement Small size, low noise, large air volume, and . Adopt advanced SCM intelligent control. Constant voltage/charging current, overload and over-discharge protection, low battery alarm. Widely used in various ornamental fishes, aquariums, company aquariums, and small ponds. Especially suitable for emergency situations of power outages, oxygen pumps for fishing in the wild, and a small amount of water transportation. Name: Solar Aquarium Oxygen Pump Set Material: monocrystalline silicon Maximum power: 20W Working current: 2A Working voltage: 5V System voltage: 5V Short circuit current: 2A Different batches may result in different product appearances, printed text, and colors, which do not affect usage Colour:black Material:Monocrystalline silicon Size:215 x 175mm Package Contents: 1 x Solar Aquarium Oxygen Pump Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the