Thermal Sensor, when the motor is up to 45℃, the cooling fan will automatically turn on to cool the motor. Perfect fit for RC 1:10 Car 540 550 Motor Heatsink with 2 fans.
It has perfect heat dissipation effect which can effectively prevent the motor from overheating.
2pcs 30MM x 30MM Cooling Fan.It Is Durable and Can Be Used for a Long Time.
Package include: 1x RC Motor Heatsink with Twin Cooling Fan