Description: Model: TF8025 This type of fan is usually used in computer and other similar electrical source. Insulation 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, between housing and plus end of lead wire. Material: 　Frame: UL94V-0 70% P.B.T.+30% F.R.P 　Impeller: UL94V-0 70% P.B.T.+30% F.R.P Bearing: ball bearing system, sleeve bearing system. Operating temperature:-10 ℃to+℃70 Storage temperature:-40℃ to+℃70 Operating voltage: rated voltage?5%. Dimension: 4-pin 80?0?5mm Voltage: 12V/ 24V Current Range: 0.1~0.16A Please do not hesitate to contact us to know more detail.