Features: After power on, the internal impeller rotates at a high speed to throw the water out quickly and form a pressure difference. The water near the bilge pump can be pressed into the bilge pump through the water inlet and then discharged. It can keep the water level below the warning level and maintain the navigation safety of the ship and the safety of the crews. It is suitable for cruise ships, fishing boats and other ships. Small size, light weight, easy to carry and install. Different applicable voltage and different displacement