Environmentally friendly: no batteries required. Solar pumps are powered by solar energy, they automatically pump water by sunlight. Energy efficient and environmentally friendly. 4 Different Water Type Sprayers: 4 different sized spray adapters for you to easily switch to different applications. can meet your different needs for spray height or spray shape. Easy to use: The floating water pump can be moved to any place you want. Just put the solar fountain in the water and let the direct sunlight take effect immediately. Self-protection: The solar fountain with water level monitoring system, when the solar pump is out of water or blocked by impurities, it will automatically stop to avoid dry burning. 【Suitable Application】The solar water pump is very suitable for bird baths, aquariums, small ponds, swimming pools, gardens and oxygen circulating water. Features: Maximum air flow: 180 l/h. Dimensions of the panel (L x W): approximately 11 x 11 cm. Pump dimensions (L x W x H):