Yes, the cable length can be extended. The solar panel comes with 1 piece of 16ft (5m)
extension cable which has a connector for the plug to the fan conveniently.
No thermostat for the fan is provided. It runs automatically when the solar panels are exposed
to sunlight and conversely shuts off when it’s dark. It is not temperature controlled. And the
thermostat also can be added to it, thanks.
As long as the sun is hitting the grid the fan is on. It works from the sun up to sun down but
winter time a few hours less.
Yes, the DC fan can be purchased separately by ASIN B08BZPPP8D, thanks.
It depends on the space and sunlight. On a bright sunny day it is close to 1500cfm for up to
2000 square feet. The cfm can be different in every home.
One-year warranty for the DC fan, 5-year warranty for the solar panel, and free replacement
of accessories are available. We always stand behind our products, any questions, please feel
free to contact our customer service team, thanks.
The noise of the working fan is around 70db, which is acceptable.
Blows strongly and steadily on a clear day.