Features: Power your aquatic sustainably with this 5W 5V Solar Oxygen pumping featuring double air stones, harnessing solar energy to enhancing aquarium aeration while eliminating battery dependency. Crafted with monocrystalline silicon solar panel, this USB compatible pumping delivers efficient oxygen dispersion through two bubble stones, ideal for maintaining optimal water quality in sunlit environments. Perfect for fishkeepers, pond owners, and outdoor aquarium enthusiasts seeking energy efficient for small scale aquatic habitats. Operates automatically in direct sunlight to oxygenate backyard fish ponds, patio water features, or indoor aquariums near sunny windowsills. The integrated depth adjustable air stones (recommended at equal shallow placement) create bubbling patterns while preventing algae buildup, doubling as a portable solar charging for USB devices during daytime use. Specifications: Component:Single Crystal Silicon Working: 5V Operating current: 0-1000MA Size:Approx. 205x140mm/5.51x8.07inch Package Includes: 1 Set Solar Power Oxygenator note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.