Size: 60x90x99mm/2.36x3.54x3.9in (LxWxH), the DC motor speed controller is small in size, installation size: 52x81mm/2.05x3.19in, convenient for installation in narrow spaces; turn control and stopSoft start protection: The motor controller has a soft start protection function, which can effectively reduce the surge current, protect the motor and prolong the lifeFunction: The DC motor speed control switch can feed back the slip energy generated during speed control. Efficient, effectively improve energy utilization and efficiency.Application range: Widely used in industrial DC motor speed regulation, DC fans, packaging, printing, electronics, instrumentation, clothing machinery, medical-machinery and other industries Input voltage:DC 12-60VOutput current:20AContinuous current:12APWM pulse width adjustable range:0% to 100%Colour:As ShownMaterial:plastic Package Contents:1 * Speed Controller Only the above package content, other products are not included.Note: Light reflection 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.