DC cooling fan: YHWF-12038 is widely used in computer and home electric appliance due to its accurate adjustment, high power, low noise and low vibration. YHWF-12038 Electric parameters; SpecificationsModelRated VoltageOperation VoltageRated CurrentRated SpeedAir SpeedStatic PressureNoiseBering(V)(V)(A)(RPM)(CFM)(mmH2O)(dBA)SystemYHWF-12038L1210.213.80.22200074.84.3238SleeveYHWF-12038M0.35250078.24.842SleeveYHWF-12038H0.5300085645 Two Ball we may develop this fan if user requires non-standard voltage. when power is fixed, power voltage is high if current is low, and power voltage is low if current is high.