Amtrak Solar's Powerful 40-Watt Galvanized Steel New Upgraded14" Solar Attic Fan Quietly Cools and Ventilates your house, garage or RV and protects against moisture build-up. New 15 inch Fan Housing. Powerful enough to open louver. Easy to install with quick-connect wires For Gabel vent, greenhouse, garage or RV. Includes 25 of extra wire and brackets Thermal protected fan motor with high efficiency fan blades. For areas up to 1750 Sq. Ft Powerful 40-Watt Solar panel. Free optional thermostat 25-year warrantythe industrys best. Made in USA