big airflow,low noise,long life,good price Voltage: 12/24 VDCSpeed:2000RPM~2600RPMImpeller diameter:60mmLength available: 120mm,180mm,240mmApplication: used as a blower in fireplace,airconditioners,etc,or related ventilation systermsCertificate: CE,UL,CCC DC Cross blower 60mm/DC tangential Fan