Mini Brushless DC Motor External Rotor DC2-3V Micro Quiet Motor Fan Motor 7000RPM Brushless DC Motor with Drive Long Life TimeBrushless motor is its own driver board, do not need to connect any circuit board can be driven, the red line is connected to the positive terminal of the power supply, the black line is connected to the negative terminal of the power supply can drive it, the rated voltage is DC2.5V, the use of voltage DC2V-DC3V, and then the large voltage fuselage will vibrate. After testing: The biggest advantage of the brushless motor is that it runs very stable, the speed is very uniform, and it is quiet, long life, and the fuselage will hardly heat up for a long time, it is estimated that the brushless motor is used in a sun hat or a relatively high-end small fan. However, the positive and negative poles of the brushless motor must not be reversed, and do not exceed the high rated voltage, otherwise it is easy to burn out.