【Premium Quality】: This brand new is made of high quality plastic material, which is eco-friendly and energy-saving. It is not easily damaged and aged, has quality and long service life. 【Long Life】: This brushless has long life and low noise, the life expectancy is over 20000 hours at normal condition. Max. input voltage: 12V DC; max. input current: 500mA; max. power: 6W. 【Excellent Performance】: This 12V DC can be operated inside/outside the cold or hot water. For indoor and outdoor use, it can sustain heavy duty work for 24 hours. Inlet diameter: about 9.8mm/0.4in; outlet diameter: about 6.8mm/0.3in. 【Wide Applications】: This has high practicality, which can be widely used for aquarium, fountain, small fish pond, solar system, radiators, water circulation system, medical equipment, etc. 【Guarantee】: Our product have 180 days warranty, if you have any question about this product, please feel to contact us, we will try our best to help you solve your problem., Manufacturer: Keenso