1. PV panel:20 watt with Adjustable frame

2. 9 inch Aluminium fans

3. Thermostation-fans will work when air reach 30°C 

4. Motor description：

-a,Motor with Aluminium alloy shell will be easy to dissipate heat,closed shell will beanti-dust.

-b,This is Brushless Motor with auto-invert voltage into 12V direct current.

-c. Easy to work. Once PV panel out power reach 3W the motor will start work.

-d. Exhaust is more than 1300CFM.

-e. Motor life is more than 12 years.