Item Type: RC Boat 370 Water Cooling PumpMaterial: Aluminum Alloy + PlasticProduct Color: As Pictures ShownPump Length: Approx. 73mm / 2.9in (including 7.8mm / 0.3in length of water inlet/outlet)Outer Diameter of Water Inlet/Outlet: Approx. 3.95mm / 0.2inMotor Outer Diameter: Approx. 24.4mm / 1.0inOuter Diameter of Pump Head: Approx. 28mm / 1.1inProduct Weight: Approx. 72g / 2.5ozPump Voltage: 3-6VPlug: JR PlugTest Data:Voltage: 3 V Pumping Flow: 1.1L/min. ; Pumping Flow: 300ml/minVoltage: 6 V Pumping Flow: 1.8L/min. ; Pumping Flow: 600ml/minApplication: For RC Boat, etc,. 1The 370 water pump is suitable for installation on remote control boats that require water cooling with water?cooled motors and do not have water?absorbing rudders. 2Under the condition of 5V voltage, the water pump still works normally without interruption after 15 hours operation. It's hot but it's in the normal range, which has no impact on future operation. 3The JR plug can be directly powered by the receiver, which is very convenient to use. 4It adopts low?noise design to provide you with a perfect gaming experience. 5Add a switch between the pump and power supply. When you need pump to work, turn on the switch. When the you need pump to stop working, turn off the switch.