Waterproof Design: This cooling pump is fully waterproof and performs reliably even submerged, ensuring a long service life. Extended Run Time: The JR connector allows for easy connection to your receiver. At 5V, the pump operates normally for over 15 hours of continuous use. Excellent Performance: The pump runs warm, but within a normal range, ensuring no impact on future operation. Low Noise Operation: Enjoy a quiet and seamless experience with its low noise design. Wide Application: The silent 370 pump is perfect for installation in remote-controlled boats requiring cooling for water-cooled motors, even without a suction pipe. The 370 motor pump voltage is 3-6V, allowing direct connection to the receiver for power. For 6S batteries (7-28V), step down to a 5V power supply for the pump. Ideal for aircraft carriers, warships, battleships, and other RC models needing electric motor and ESC cooling. Switch Control: Add a switch between the pump and power supply. Turn on the switch when the pump needs to operate and turn it off when cooling is not required. Pump Operation Test: In practical tests, the pump runs continuously for 15 hours at 5V, functioning normally. The temperature increases slightly but remains within the normal range and does not affect use. Additional Information: Pump outlet diameter: 3.95mm (center hole is the outlet, eccentric hole is the inlet). Operating Voltage: Rated 6V, usable with 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: 72mm length (including pump outlet), motor outer diameter 24.4mm, pump outer diameter 28mm Pump Length: 7mm (including 7.8mm inlet and outlet lengths) Inlet and Outlet Outer Diameter: 3.95mm Tool Supplies: Assembled class Technical Parameters: Value 2 Model Number: RC Parts Remote Control Accessories/Devices: Remote Control For Vehicle Type: Cars Four-wheel Drive Attributes: Assembly Wheelbase: Screws Color: Metallic Material: Metal Size: Approximately 5 x 3.6 x 1.5 cm Package Contents: 1 x 370 RC Water Cooling Pump Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.