Honeywell 12 Watt Gable Mount Solar Attic Fan Help reduce energy usage by exhausting hot air from attics or crawl spaces by using a solar powered attic fan. Reduce potential mold and increase roof life by exhausting moist air. A whisper quiet 24 volt motor is powered by an industrial grade 12 watt solar panel powering a 14-inch aluminum blade is thermostatically controlled; if the conditioned space reaches 85 degrees, the motor turns on, and once it cools to 65 degrees, it will shut off. Unit will condition up to 1,250 square feet. Powered by solar energy, there is zero cost usage, and it does not require an electrician to install. Galvanized & powder coated metal components resists rust. Wire mesh keeps unwanted rodents out. Product includes 30 feet of connecting wire so solar panel can be mounted to maximize sun exposure. Solar panel can be attached to roof or exterior wall. Patent pending grommet and cover included to prevent leaks. Limited 5 year warranty on the fan and 20 year warranty on the solar panel. May qualify for federal and/or local tax rebates.