... 2)Brushless,low voltage, low noise,mini 3)connect with solar panel directly or dc power ... noise: Within 40dB, far from 1meter distance.3. Duty work: The pump can sustain heavy duty ... degC.6. It is waterproof and can be submersible.Application:1. Solar water circulating system.2. Village ... or family water supply 3.Animal drinking water and livestock watering4. Garden /contrary ...