Dimensions : 40 × 40 × 20mm [ Rated voltage : DC24V [ Voltage Range ]: DC7.0V-26.6V [ Input Power : 1.7W [ Rated speed : 8200 r.p.m. for Temperature range : -10 .. 70 ° C [Life expectancy : L10 expected life of 50,000 hours at 25 ° C when [ Bearings]: Maglev Hypro bearing [ Rotation]: wind discharged from the stent , the face of the rotor counterclockwise rotation [ Wiring] : + Red - Black [ Maximum air flow : 10.8CFM [ Motor Protection] : Wrong level protection and stall protection locks flow [ Minimum pressure ] : 0 .. 40 Pa [Noise indicators ] : 32.0 dB ( A ) [Material Material : Glass fiber reinforced plastic , PBT housing, PA leaves [ Function Description ] : electronically commutated external rotor DC fans , for the complete electronic parts