For any fan to work, it must have a source of power. In case of solar fan the source of power, is through solar panel. If the solar panel low wattage and does not generate enough power it does not matter how good the fan is it will not give good performance.
So, to get a good performance from a solar attic fan it is important to get the high wattage solar panel is a necessary. As the power output from the solar panel will directly affect the performance of the fan. This is main reason at Amtrak Solar we provide the highest wattage solar panels for our fans in this industry.