We are Manufacturer Specialized in Cooling Fan(Brushless DC Fan, DC Fan, Blower Fan) for 20 years. Have UL,CE,TUV,RoH DC Brushless Fan(Brushless DC Fan, DC Fan, Brushless Fan,cooling Fan,Blower Fan) :Model: TFS-9225Size: 92*92*25mmVoltage: DC, 5V, 12V, 24V Insulation resistance: More than 10m Ω between housing and plus end wire red color at 500V DC. Dielectric strength: No damage can be found ...