Feature:1. Excellent Performance: The motor speed governor has the advantages of compact size, wide speed range and excellent mechanical characteristics.2. Long Life: The motor speed controller uses reliable circuit boards and is housed in ABS material for a longer service life.3. Electromechanical Integration: The motor speed controller has a direct DC voltage start, a brush and brushless DC motor, a miniature gear reducer and a speed sensor and is a mechatronic product.4. DC Motor Power: The motor speed controller can be used with DC motors of 50W, 100W, 120W, 200W, 300W, 400W, etc. DC motor forward and reverse, please connect M+,M- to achieve forward and reverse.5. Outstanding Design: The motor speed controller's chassis has been carefully designed to protect the control board from damage.Specification:Item Type: Motor Speed ControllerMaterial: ABSInput: 220VAC Output: 110VDCExternal Size: Approx. 100 x 60 x 114mm / 3.94 x 2.36 x 4.49inOpening Size: Approx. 81 x 53mm / 3.19 x 2.09inMounting Method: Panel screw mounting.Package List:1 xMotor Speed Controller