This fan is a 12-volt dc fan with an 80-watt motor.
It is configured to work with a solar panel ranging from 15 to 80 watts.
The fan turns on as soon as the sunlight hits the solar panel and turns off at night.
Keeps the house cool and ventilated with fresh air circulation all day.
The dimension of the fan is 12" x 12" x 3" Fan can be installed in opening such as a gable vent. Where it can be easily connected to any solar panel. Full refund if the product is defective.