Motor Diameter : 127mm * 127mmMotor type : FFB1312EHE-FOOMotor Length : 38mm ( DC )Motor operating voltage : 10.8-13VMotor nominal current : 4.11A ( DC )Motor power : 49W ( DC )Motor Bearing : Dual ball bearingMotor Interface : Red Black Blue Line 3Motor outlet : Red Line + positive black line - negative blue line ( fast speed )Features double ball bearing maintenance , long service life , with plenty of cooling air volume and pressure .