Waterproof Design: This water cooling pump is waterproof and performs reliably even submerged, ensuring a long service life. Extended Operation: The JR connector is perfect for plugging into your receiver. At 5V, the pump operates continuously for 15 hours without interruption. Excellent Performance: The pump may get warm, but it remains within a normal range and won't affect future operation. Low Noise: Enjoy a quiet and immersive gaming experience with minimal noise. Wide Application: This silent 370 water pump is ideal for installation in remote-controlled boats that require water cooling for the motor and lack a suction rudder. The 370 motor pump voltage is 3-6V, allowing direct connection to the receiver for power. Also suitable for 6S (7-28V) battery 5V power supply. Perfect for RC aircraft carriers, warships, battleships, and other models needing water cooling for electric motors and ESCs. Switch Control: Add a switch between the pump and power supply. Turn the switch on when the pump needs to work, and off when it needs to be stopped. Pump Working Test: After testing, the water pump runs continuously for 15 hours at 5V, functioning normally. The temperature increases slightly, but remains within the normal range and doesn't affect use. Other Instructions: Pump outlet head diameter: 3.95mm, the center hole is the water outlet, the eccentric hole is the water inlet. Operating Voltage: Rated 6V, use 3-6V Voltage: 3V Pump Flow: 1.1L / minute Pump Flow: 300ml / minute Voltage: 6V Pump Flow: 1.8L / minute Pump Flow: 600ml / minute Pump Size: Including pump outlet head length 72mm, motor outer diameter 24.4mm, pump outlet head outer diameter 28mm Pump Length: 7m (including 7.8mm inlet and outlet lengths) Outer Diameter of Water Inlet and Outlet: 3.95mm Tool Supplies: Assembled class Technical Parameters: Value 2 Model Number: RC Toys Parts Remote Control Peripherals/Devices: Remote Control For Vehicle Type: Cars Four-wheel Drive Attributes: Assembly Wheelbase: Screws Color: Metallic Material: Metal Size: About 5 x 3.6 x 1.5cm Package Contents: 1 x 370 RC Water Cooling Pump Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3cm.