Motor speed control. Motor forward and reverse control. Adjustable current limit Electronic adjustable potentiometer single chip microcomputer can control wide voltage input range in any way Speed control and commutation control of DC brush motor. Potentiometer controls the motor forward and reverse rotation and commutation Single-chip microcomputer controls the forward and reverse rotation and commutation of the motor Semiconductor refrigerator temperature adjustment and commutation control. Speed regulation and commutation control of motor Product Name: Motor Speed Controller Rated input voltage: 5V-24V/DC Standby current: Less than 20mA Average use current: 10Ax2 10A per channel ESC mode: model airplane remote control: 1ms-2ms (pulse width)/50HZ MCU mode: 0%-100% ratio/rate: 500Hz~16kHz Potentiometer mode: 0v-5V input voltage (2.45V-2.55V motor stops) Limit parameters: Limit input voltage range: 5V-24V/DC (MAX) Pulse current: 50Ax2(MAX) Application scope: model ESC, smart car, motor speed and commutation control, fighting robot production, hollow cup motor control size:48.5x41.5x15mm Material:PCB+metal colour:red Package Contents: 1 x - dual channel motor speed controller Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.