Feature:1. Circuit optimization design, high quality and stable performance, suitable for long term work.2. Digital motor speed control is noise free and vibration free, with power indicator light.3. 400w motor output, 90~1400rpm / 90~1700rpm speed control range, with running stop braking function.4. Small size, light weight, lightweight and portable, easy to carry, convenient to install, can meet your needs.5. UX-52 Electric motor speed controller is operable at -10 to 50C, and can be stored at -20 to 60C.Specification:Item Type: Motor Speed ControlMaterial: ABSRated Voltage: 220~230VOperating Voltage Range: 10%Power Frequency: 50 / 60Hz 2%Motor Output: 400wSpeed Control Range: 90~1400rpm / 90~1700rpmSpeed Change: 5%Speed Setting: ContinuousControl: Electronic Speed Control MotorElectronic Valve: 0.5SParallel Operation: Not ApplicableSoft Stop/Start: NoneOperating Temperature: -10~50Storage Temperature: -20~60Suitable for Motors: Induction, Reversible.Package List:1 x Speed Control1 x Line