[]:Delta[ Fan Model ]: FFB0412SHN[ Dimensions ]: 40 × 40 × 28mm[ Rated voltage ]: DC12V[ Voltage Range ]: DC7.0V-13.6V[ Input Power ]: 0.6 A[ Rated speed ]: 8700 r.p.m[ Temperature Range ]: -10 .. 70 ° C[ Life expectancy ]: 25 ° C when the life expectancy of 50,000 hours L10[ Bearings] : Maintenance- double ball bearing[ Rotation] : air discharged from the stent , in the face of the rotor counterclockwise rotation[ Maximum air volume ] : 43CFM[ Motor Protection ] : overload , wrong level protection and stall protection locks flow[ Minimum pressure ]: 110 Pa[ Noise index ]: 40 dB (A)[ Material Material ] : Glass fiber reinced plastic , PBT housing , PA blade[ Function Description ] : E external rotor DC fans, complete electronic commutation componentsThree -line stall warningFour-wire PWM: