8in EC Motor Ventilation Exhaust Fan Duct Fan PWM Adjustable Speed Controller 760CFM Features: 1. High air volume and high wind pressure 2. Compared with the traditional AC fan, the intersecting surface of the airfoil is relatively stable, the angle difference is small, the blade thickness is thicker, and the operation is more stable. 3. The air volume under the same caliber is larger, which breaks through the limitation of the frequency of the traditional AC fan and greatly increases the fan running speed. 5. Compared with the AC pipe fan, the power is lower at the same speed and the energy consumption is lower, thus achieving the effect of power saving 6. Widely used in conference rooms, high-end office buildings, public places, hotels, houses, hospitals, gyms, etc.   Specification: Condition: Item Type: EC Motor Ventilation Exhaust Fan Pipe Diameter 8in/200mm Model Current Power Speed Air Volume Wind pressure V Amps W RPM CFM Pa 8in 220-240 1 110 3500 760 485 8in 100-120 2 110 3500 760 485   Package List: 1 x Fan 1 x Governor(concealed installation) 4 x Expansion Screw 4 x Screw 1 x Connecting Cable