PWM Speed Controller Brushless DC Motor Control Board PWM Governor Module DC8-24V Monitor
The working voltage is between 8-24V DC, the PWM 5V output frequency is about 18kHz and the touch ratio is 0%-100%.
On the driver board there are start/stop switches and front/rear switches, which must be supported by the engine itself.
Please note that this board can only accelerate the brushless motor with drive and PWM connector.