Fan models: FFB0412SHN Rated voltage: DC12V Voltage range: DC7.0 V to 13.6 V The input power: 0.45 A Rated speed: 8700 R.P.M Temperature range: - 10~70 °C. Expected life: 25 ° C L10 expected life of 50000 hours Bearing structure: double ball bearing without maintenance Direction of rotation: wind discharge from the scaffold, in the face of the rotor rotate counterclockwise Maximum air volume: 43 CFM Motor protection, overload protection, fault protection and locked-rotor lock flow protection The minimum air pressure: 110 Pa Noise index: 40 dB (A) Function description: the electronic commutator outer rotor dc fan, complete electronic commutation components Connection: 4 pin (with temperature control) Different batches, the appearance of the product may be different from the picture, but the performance is the same, it does not affect size:40x40x28mm Material:PBT+PA+glass fiber colour:black Package Contents: 2 x Cooling Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.