VMT1001 Features: * Solar powered roof vent * Comes with a steel flange and weathered grey galvanized steel dome * Solar panel, mounts directly to the top of the dome * There is no wiring to the AC main power source * Exhaust fans require a minimum of 600 square-in of net intake airflow [net free area] in order to function safely and correctly Specifications: * 12.6 Watt multi-crystal panel * Ventamatic solar powered roof attic ventilator with 12.6 watt 18 volt DC motor has no energy costs * Produce up to 1,000 CFM with additional solar panel * Designed for attics up to 1,500 square feet Dimensions: * Dimensions: 25-35"" H x 9-10"" W x 26-27"" D