Details:1.output:20W,30W,36W,40W,60W,65W,70W,100W,120W,200W2.DC Voltage:12V,24V,90V,180V3.rotating speed:0.8RPM-1500RPM4.dinmension of device:70*70mm,80*80mm,90*90mm5.rotating speed :1rpm-3600rpm6.certificate:3C,ISO9001,CE7.turning speed:1800rpm-3200rpmCharacteristic:1.the starting torque is...