40 мм оконный

Q1: Are you a factory or trading company ?

A1: Yes,We are the factory which have 15 years manufacture history.

Q2: What is DC Fan and AC fan?

A2: DC fan is power by DC voltage,always is 5V 12V 24V 48V 60V and72V.

AC fan is power by AC voltage,always is 110V,220V and 380V.

Q3: How to choose Fan?

A3:  To choose a Fan, you should consider the points below:

a. Fan size  b. Fan voltage   c. Fan speed

d. Fan bearing type ? ( Sleeve-bearing or Ball-bearing type?)

e. Fan power ( Wattage)  f. Fan airflow.

Q4: How long is the warranty?

A4: We Guarantee 1 years warranty.

Q5: What is the delivery time?

A5:  Sample lead time:3-5 days

Mass production Delivery lead time: 1 -3 weeks(Depend on the quantity)

Q6: Can you tell me the normal DC fan Model?

A6:  15*15*6mm  25*25*10mm  30*30*10mm  40*40*10mm  40*40*20mm  40*40*28mm 50*50*10mm  50*50*15mm  50*50*20mm  60*60*10mm 60*60*20mm 60*60*25mm  70*70*15mm 70*70*25mm   80*80*15mm   80*80*25mm 80*80*38mm 92*92*25mm

120*120*25mm 120*120*38mm   140*140*25mm  150*150*51mm 172*150*51mm

Q7: Can you tell me the normal AC fan Model?

A7:  80*80*25mm, 80*80*38mm, 92*92*25mm, 92*92*38mm,

110*110*25mm, 120*120*25mm, 120*120*38mm, 135*135*32mm

172*150*38mm,  172*150*51mm,  150*150*51mm,  172*172*51mm,

180*180*61mm, 200*200*60mm, 223*223*61mm,  230*200*65mm,

107*100*30mm, 150*160*60mm,  210*210*70mm  172*150*51mm 225*225*80mm,280*280*80mm, 250*410*90mm, 300*460*100mm,

200mm-600mm External Rotor fan,  130FLJ1 blower