Features:_x000D_ _x000D_ Speed Control Knob: This knob can adjust motor speed and display in real time. _x000D_ There are 16 controllers in different types, you can choose the one you need. _x000D_ You can accelerate or decelerate motor slowly with this speed control unit. _x000D_ Built-in operating capacitor, convenient to use. _x000D_ Main wire: Black; Capacitor wire: Red, White; Feedback wire: Blue, Yellow; Earth wire: Green. _x000D_ _x000D_ Specification:_x000D_ Input Voltage: AC 220V_x000D_ Speed Adjustable Range: 0-100%_x000D_ Optional Type: _x000D_ _x000D_ 6W Single Row 6 Pin _x000D_ 15W Single Row 6 Pin _x000D_ 25W Single Row 6 Pin _x000D_ 40W Single Row 6 Pin _x000D_ 60W Single Row 6 Pin _x000D_ 90W Single Row 6 Pin _x000D_ 120W Single Row 6 Pin _x000D_ 200W Single Row 6 Pin _x000D_ 6W Double Row A Port _x000D_ 15W Double Row A Port _x000D_ 25W Double Row A Port _x000D_ 40W Double Row A Port _x000D_ 60W Double Row A Port _x000D_ 90W Double Row A Port _x000D_ 120W Double Row A Port _x000D_ 200W Double Row A Port _x000D_ Size: Approx. 10*10*5cm/3.9*3.9*2inch_x000D_ Weight: Approx. 327g / 11.5oz_x000D_ _x000D_ Package List:_x000D_ _x000D_ 1 x Motor Speed Controller _x000D_ _x000D_ _x000D_ Note: Do NOT plug or unplug when power on.