Features Effortless Speed Adjustment: The intuitive speed control knob allows for seamless motor speed adjustments, making it user-friendly for various applications Accurate Readings: The clear panel features a precision dial with a pointer, ensuring you can monitor and set the desired speed with accuracy Remarkable Energy Savings: Designed specifically for fans and pumps, this controller significantly reduces power consumption, enhancing efficiency during Features: 1、Speed Control Knob: This knob can adjust motor speed, easy to use 2、Clear panel and dial, the pointer can point speed accurately 3、When the load is fan or pump, the power saving effect is remarkable 4、With IP5X dustproof class, can be used for panel embedded or wall mounted, bottom incoming wire 5、Used for speed control of electromagnetic asynchronous motor (slip motor), realizing stepless adjustment of constant torsion Specification: Features: Speed Control Knob: This knob can adjust motor speed, easy to use. Clear panel and dial, the pointer can point speed accurately. When the load is fan or pump, the power saving effect is remarkable. With IP5X dustproof class, can be used for panel embedded or wall mounted, bottom incoming wire. Used for speed control of electromagnetic asynchronous motor (slip motor), realizing stepless adjustment of constant torsion. Specification: Input Speed: 1rpm Output Speed Range: 1 Exciting Voltage: DC90V Field Current: 5A Mounting-hole Size: Approx. 192 x 132mm / 7.6 x 5.2inch Product Size: Approx. 210 x 150mm / 8.3 x 5.9inch Weight: Approx. 944g / 33.3oz Optional ModelAC 200-240V Package List: 1 x Electromagnetic Motor Speed Controller 1set x Accessory Package List