["brand new and high quality\r\nControl the speed of a for DC motor with this controller.\r\nControl the light of a lamp with this controller.\r\nHigh efficiency, high torque, high power, high heat dissipation.\r\nWith overcurrent for protection.\r\nThe high quality COMBICON improve the stability of circuit.\r\nInput voltage: DC12V - 36V\r\nSustained current:3A,max.6A(Need to add a cooling fan when max. current)\r\nPWM Duty Cycle:0 -\r\nMaterial: Plastic, metal\r\nSize (L*for W*H):55mm*35mm*21mm\r\nNote: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\nTo connect the for DC power supply:ensure the power supply voltage 12V - 36V, ensure the power supply output power meet the requirements of the motor work.for Dc power don'for t reverse the positive and negative terminals, otherwise the governor may damage;\r\nLine connecting motor: the motor can be both positive and negative, when running direction and expectations are not consistent, can adjust the line sequence by position or to change the direction;\r\nAdjust potentiometer knob: adjust potentiometer knob can change speed output duty cycle, motor speed change."]