Motor Type:Brushless motor Speed:100-2000rpm Number Of Rollers:10rmp Module capacity:VM551 Vialф22*60 or ф26*65 VM552 Vialф16*3 or Ф18*2 VM553 VialФ22*2 or ф28*2 Module MaterialTiming:EVA modules Allowed Ambient Humidity Temp.:1min -8h Voltage:5~40℃,80%RH Power adapter:DC12V Power (W):20W Dimension(mm):155*150*90CM