Decdeal Ultra-quiet Mini DC12V 10W Brushless Water Pump with 5.5*2.1mm Female Waterproof Submersible Fountain Aquarium Circulating 400L/H Lift 400cm 6. When the pump is used in high temperature environment(100°C), it can only be installed with non-diving method. Detachable design, providing convenience for cleaning work. Package List: Amphibious pump, you can use it in the water or out of water(follow the installation instruction). 1 * User Manual(English) 3. It can be used in the water or other liquids(without particles and impurities); NOT for viscous and acid-base liquids. This is a size submersible water pump. It's equipped with a brushless motor providing smooth and quiet operation than a non-brushless water pump. The coil adopts pure copper enameled wire, lower temperature rise and longer span. With a filter, avoiding blocking the inlet. Suitable for aquarium, fountain, car cooling, computer water cooling system and circulation systems. 5.5*2.1mm female DC12V for input. Features: 1. Please check the voltage and of the pump before on.2. Please cut off the before you install/put in/take away the pump from the water; otherwise, the pump can't outlet water due to the air in it. Specifications: 4. DO NOT burn the pump, otherwise it would be damaged. 5. Switch on-off the repeatedly for several times to eliminate the air in the pump impeller and the pipe. Enameled wire coil and circuit board are by epoxy resin. 1 * Filter 4 rubber suckers on the bottom, can adsorb on the smooth surface and reduce noise and vibration. 1 * DC12V Brushless Pump Note: Small size, high efficiency, low noise. Brushless pump, permanent magnetic rotor, maintenance-free. IP68 waterproof grade, totally submersible in the water. IP68 waterproof grade, totally submersible in the water. Detachable design, providing convenience for cleaning work. With a filter, avoiding blocking the inlet. With a filter, avoiding blocking the inlet.4 rubber suckers on the bottom, can adsorb on the smooth surface and reduce noise and vibration. 5.5*2.1mm female DC12V for power input.