5 Pieces LOT DC 12V 2Pin 60mm 6cm 60x28mm 6028 Small Cooling Centrifugal Blower Fan Ball Bearing Turbo Fan Cooler ,Lightweight Portable

1.Transition: 1cm=10mm=0.39inch. 2.Compared to axial fans, blowers produce slightly more noise when working. 3.Compared to other bearings, double ball bearing fans produce slightly more noise, but last longer. 4.The current on the label will be updated from time to time, but keeping the other parameters the same.