Environmentally Friendly: No batteries required. Solar pumps are powered by solar energy, automatically pump water in sunlight. Energy-saving and environmentally friendly. 4 Different Water Type Sprayers: 4 different size 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 at will. Just put the solar fountain into the water and let the direct sunlight work 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: Panel size (L x W): about 11 x 11 cm. Pump size (L x W x H): about 3.8 x 3.8 x 2.8 cm. Lifespan: more than 10,000 hours. Height Maximum