Starting Fastand Cool Soon ;After Fan been Connected, Wind Comes Soon.Low Consuption Strong Wind ; Current 0.25A Running at Speed 1600RPM+-10%,Will Cool the Enviroment Quickly.Working Voltage 12V Will Fit for Many kinds of Use; 2pin Cooling fan replacement , Refresh Air of your Underground , Other Places Cooling ,Electronic Equipment Cooling, or Other DIY Cooling Work.Long Life Low Noise; Long Life Sleeving Bearing ,This Makes sure the Required Cooling and Minimizes the Noise Level;It will be the Best Choice for Low Cost Cooling Fan.Even you are very near,Still Can not Hear the Noise.