Features: This is a single phase 220V voltage input frequency converter to drive a three-phase motor (be sure to convert the connection method into a T-ring type). 4-digit digital tube display, you can see the data clearly. Support radiator's temperature value, current current value, DC main voltage value, engine speed, operating frequency value. Output 1.0-99.0Hz to improve output voltage, this product uses SVPWM modulation mode, carrier frequency 8.0KHz. The frequency inverter can change the U/F curve arbitrarily by adjusting the U/F compensation frequency and voltage ratio at the frequency. By adjusting the maximum value of the V/F curve according to the load situation to maximise the use efficiency of electrical energy, reduce engine heat, extend the life of the motor and the frequency converter. Color: black Material: ABS Package Contents: 1X frequency converter 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.