Branf:DeltaModel : PFC0612DEDimensions : 60 * 60 * 38mmBearing : Dual ball bearingVoltage : DC 12VCurrent : 1.68ASpeed : 13500RPMAir volume : 2.01m3 / min 67.85cfmNoise : 61.0 dBWeight : 115 gMaintaining optimal continuous operating time 10,0000 hoursFeatures double ball bearing maintenance , long service life , with plenty of cooling air volume and pressure .