1.Large air flow, Low noise. 2.Current: AC/DC 3.Environment temperature under 60C 4.Made-to-measure aluminum fan blade with AC/DC motor1.cross flow blower with Large air flow, Low noise.2.Current: AC/DC,used for stove;3.Environment temperature under 60°C4.Enquiry would be appreciated!technical features: Impeller material: Aluminum alloy Fram material: Zinc plate Useage: Fireplace,fan heater, ...