This is a mini size submersible water pump. It’s equipped with a brushless motor providing smooth and quiet operation than a non-brushless water pump. Features: Brushless pump, permanent magnetic rotor, maintenance-free. Enameled wire coil and circuit board are sealed by epoxy resin. The coil adopts pure copper enameled wire, lower temperature rise and longer life span. Amphibious pump, you can use it in the water or out of water(follow the installation instruction). 5.5*2.1mm female DC12V for power input. Flow Adjustment with LED indicators, and memory function when power off. Lack of water protection. IP68 waterproof grade, totally submersible in the water. Detachable design, providing convenience for cleaning work. With a filter, avoiding blocking the inlet. 4 rubber suckers on the bottom, can adsorb on the smooth surface and reduce noise and vibration. Small size, high efficiency, low noise. Suitable for aquarium, fountain, car cooling, computer water cooling system and