Energy-saving solar power, it is automatically, efficient and environmental-protection. High flexibility, easily move to different locations without plugs Suitable for bird bath pool, fish tank, small pond, garden decoration, public parks, etc. Put the solar panel directly under sunshine to keep the pump working under normal condition;The pump will start in 3 seconds after the panel received adequate solar; Clean the pump regularly Please Note: The pump comes without power storage, and its performance depends entirely on the strength of the sunlight. When the sunlight is weak, the water pump will not work continuously, once the sunlight gets strong, the pump will continue to work normally. Methods: Please immerse the pump fully underwater, and insert the nozzle after expelling the air in it