We are Manufacturer Specialized in Cooling Fan(Brushless DC Fan, DC Fan, Brushless Fan) for 20 years. Have UL,CE,TUV,RoHS. DC Brushless Fan(Brushless DC Fan, DC Fan, Brushless Fan) :Model: TFS-6020Size: 60*60*20mmVoltage: DC, 5V, 12V, 24VInsulation resistance: More than 10m Ω between housing and plus end wire red color at 500V DC.Dielectric strength: No damage can be found 600v AC.2 secretary, ...