1.The whole process has stable performance and and negative rotation function 2.Suitable for DC brushless hall motor(electrical of 120degree) 3. VCC GND===external dc power supply 4. speed signal output 5. and negative rotation control interface (external three-position switch is also available) 6.VR==speed regulating signal input (through 10K potentiometer; also 0-5v analog input speed regulating) 7.PWM===input 5V PWM signal speed regulating (when external PWM is connected, it is necessary to unplug the potentiometer above VR) Product name: 350W brushless hall dc motor driver Models: ZS - X11B1 Operating voltage: 5-36v Maximum current: 16A Maximum power: 350W Overcurrent protection: yes Product size: length 63MM x width 45MM x height 28MM Weight: about 93g Colour: Material:PC+Metal Package Contents: 1 x Motor Controller Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.