Welcome to our store! 1. It is waterproof and works well in water. The JR connector is suitable for connecting to the receiver, plug and play. 2. Under a 5V voltage condition, the pump can continuously operate for 15 hours, pumping water without interruption. 3. When operating normally, the temperature will rise, but this is within the normal range and does not affect usage. 4. The 370 motor pump voltage is 3-6V, which can be directly connected to the receiver for power. 5. Using a step-down module, you can directly connect a 2-6S (7-28V) battery to step down the voltage for the 5V water pump. Item Type: RC Boat Water Pump Material: Metal Color: As the picture shows Total Length: Approx. 73 mm/2.9 inches Motor Length: Approx. 24.4 mm/1.0 inches Pump Head Diameter: Approx. 28 mm/1.1 inches Water Outlet Length: Approx. 7.8 mm/0.3 inches Water Outlet Diameter: Approx. 4.3 mm/0.2 inches Weight: Approx. 66.0 g/2.3 oz Waterproof Pump: You can place the pump directly in water for operation JR Connector: This connector is suitable for direct connection; After actual testing, the water pump operates continuously for 15 hours under a 5V voltage condition, pumping water without interruption. When operating normally, the temperature will rise, but this is within the normal range and does not affect usage. Operating Voltage: Rated 6V, use 3-6V Voltage: 3V Pump Water Flow Rate: 1.1 L/min Pump Water Flow Rate: 300 ml/min Voltage: 6V Pump Water Flow Rate: 1.8 L/min Pump Water Flow Rate: 600 ml/min Scope of Application: Quiet 370 water pump, suitable for installation on RC boats requiring water-cooled motors and lacking a water absorption steering mechanism. The 370 motor pump voltage is 3-6V and can be directly connected to the receiver for power. Via a step-down module, it can be directly connected to a 2-6S (7-28V) battery to step down the voltage for the 5V water pump. It is suitable for RC aircraft carriers, warships, battleships, and other series of RC vessels that require water-cooled motors and ESCs. 1 x Water Pump If you receive your item and discover any product issues, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.