A high-airflow exhaust fan designed to cool and ventilate greenhouses, garages, attics, workshops, and sheds. The system can automatically eliminate heat, moisture, odor, and dust from enclosures, rooms and buildings. Features an inline speed controller utilizing PWM-technology. Innovative EC-motor with PWM-control maximizes airflow while reducing energy consumption and noise levels. Heavy-duty build features aluminum blades, steel wire guards, and steel shutters. Includes everything needed to mount the fan unit and power it through an outlet. This product is a part of the UIS™ platform of grow devices and smart controllers, designed to integrate with each other to achieve your ideal environment.