low noise,long life,good price Voltage: 120VAC/230VACFrequency: 50/60HzInput Power: 20-60WSpeed: 1100RPM,1300RPM,1500RPM,1600RPMImpeller wheel diameter: 65mmLength available: 120mm,190mm,240mm,300mm,360mm,420mmNoise: 40~50 d(B)A Fireplace blower/cross flow blower/ventilation fan