DCfan, YHWM-100 set is driven by brushless DC motor and change direction electrically depending on Holl unit: its material is PBT-UL94Vo; has long life and low noise; and is manily used in heat dispersion of induction cooker. Electrical parameters: SpecificationsModel Rated VoltageOperation VoltageRated CurrentRated SpeedAir SpeedStatic PressureNoiseBering System(V)(V)(mA)(RPM)(CFM)(mmH2O)(dBA)YHWF-100M1210.213.80.19190068.342.132SleeveYHWF-100H2220.223.80.2220072.322.2434Sleeve