Cooling Fan 12V 9.2cm 3W speeds up to 2500RPM Suitable for cooling various electronic components Note : 1. The Fan must be used within the appropriate temperature range from 5 to 50 degrees Fahrenheit. 2.Continuously clean the fan 3.Add a lubricant oil for the fan every 3-6 months to extend the life of the propeller. By removing the decal behind the spirit and adding a little lubricant oil in the propeller.