1. This intelligent AC motor governor is suitable for 6-400W mini motor. 2. With soft to achieve the starting of motros. 3. This speed controller can stop or re-drive the motor in the motor running process. 4. LED screen display, clear and intuitive. 5. speed control, stable performance. Model: ux-52 Type: Motor Governor Input voltage: 220VAC Output voltage: 220 V Operating voltage range: -10% ~ +10% Power frequency: 50/60hz, Less than or to -2%~+2% Motor output: 6/15/25/40/60/90/120/150/180/200/250/400W Speed adjustment range: 90-1400 rpm Speed change rate: 1% Steady speed accuracy: 1% Suitable motor: 6-500W gear motor Speed setting: Continuous Soft stop/: Yes Display mode: Digital display Operation mode: Manual precision Installation dimension: 53*81mm/2.09*3.19inch Colour: Black Material: metal + plastic Package List:1* Digital Motor Governor Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.