new motor speed controller made of ABS material. Applies PWM technology for effective speed adjustment of DC motors, suitable for frequent motor reversing. Armature voltage is continuously adjustable from 0-220V, ensuring high efficiency in speed control. Equipped with overload protection to prevent damage from overload or short circuits, requiring technician assistance for replacement. Compatible with series server motor, permanent magnet motor, J- () motor, and KC50 motor. This motor speed controller is designed to provide precise control over DC motor speeds, making it ideal for various applications. With a maximum power of 1200W and an output voltage range of DC 0-220V, it ensures stable performance and durability. The compact size of approximately 145*90*41mm allows for easy installation in tight spaces. The controller is suitable for environments with relative humidity below 90% and altitudes under 1000 meters. Color: As Shown Material: ABS Package Contents: 1*1200W DC motor 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.