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Wenzhou Sunuse Electric Technology Co., Ltd.  

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Adjustable Tilt solar power ventilation fan 20W for Commercial Flat Roofs 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: ST20

Adjustable Tilt Solar Powered Ventilation Fan 20w Dc Brushless Motor Low Noise</st

Adjustable Tilt Solar Powered Ventilation Fan 20w Dc Brushless Motor Low Noise


Quick Detail:

  • Curb Mount Design for Commercial Flat Roofs.
  • Capacity of the 30-watt Model: Up to1255 CFM.
  • Adjustable Tilt Solar Module.
  • 20-25 years Manufacturer's Warranty.




Technical Parameter

Design Life
Solar panel Peak power(W) 20W 20-25 years
Peak voltage Vm(V) 17.28
Peak current Im(A) 1.16
Open-circuit voltage Voc(V) 21.24

Short-curcuit current Isc(V)

Dimensions(mm) 420x420x25
Weight 3kg
BLDC Motor Initial power ≤0.45W Continuous work:
above 20000 hours
Multi-shift air regulation Pls follow the instructions to use

without load current

0.20A MAX
Rotor inertia effect 730g*cm2
Noise 45 dB(A)MAX
Weight 390g



solar ventilation fan’s Life & Warranty: 

Fan guard 580x580mm,H 128mm. 5-8 years
Integration of injection molding(ABS).
The sheating material adding anti UV ingredient.
Good weather resistance, durable.
Base plate 1.5mm thick steel plate, outdoors spray. 10-15 years
Fan cover and base firmly together.
High reliability, wind-resistant, anti rain.
Base adjustable angle.
Fan blade Fan blade manufacture using CFM. 8-10 years
The highest output of five wing.
Diameter 30cm,ultralight,long life.
Precision balance blades, aluminum material.
Be able to all kinds of weather conditions.
Protecting cover Stainless steel wire screen protection. 10-15 years
Prevent debris, bug, bird and small rodent.
Meanwhile let the air circulate freely.
Thermostat Metal thermostat. 3-5 years
Attic air temperature: equal to or higher than 25 °C to 30 °C.will setting a temperature point and the corresponding fan switch.
Adjustable support 0-60° 10-15 years
Test result: Ventilation volume:1255CFM
Wind resistance:170 mph
Weight 15.3KG
Host Dimensions 580x580x210mm, (Note:1*40 feet container Load 432pcs.)










A solar fan is more environmentally friendly.


Though initially the installation may be costlier, in the long term it would turn out to be cheaper.

because it does not use power from the utility grid 

and may provide savings up to 30 percent on air conditioning costs.


Risk of electric accidents are eliminated as there are no electric cords attached to the solar fan.

Another great benefit of having a cordless appliance is that 

it has much more mobility compared to conventional fans.



1. What are the features of the attic fan thermal switch?

-----The thermal switch automatically turns the fan on when the attic temperature reaches 80 degrees 

and shuts off when the temperatures reaches 65 degrees. It also increases the life of the motor.

2. Can I install this attic fan on my flat roof?

------ It is not recommended because you would need to build a curb for it.

3. Does this solar attic fan have a battery backup?
------ No, all solar attic fans on the market today are powered by the solar panel directly to the motor. 

For additional run time, consider the solar attic fan controller, which turns the solar attic fan into a fan 

that can also use house power as a backup source. 


 Mr. Sophie

Tel: 86-577-57181685
Contact to this supplier

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Company Info

Wenzhou Sunuse Electric Technology Co., Ltd. [China (Mainland)]

Business Type:Manufacturer
City: Wenzhou
Province/State: Zhejiang
Country/Region: China (Mainland)

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