Solar Powered 25-Watt Low Profile Roof Mount Exhaust Fan

The GAF Master Flow 25-Watt Low Profile Solar Powered Roof Mount Exhaust Fan will help remove excess heat and moisture from your attic to protect your roofing system from premature deterioration and its low profile design enhances the appearance of your finished roof. The Solar Powered fan requires no wiring and uses no electricity. Hot attic air is removed from the attic by the fan as fresh air is drawn into the attic through your existing intake vents. The 24-Volt DC brushless motor provides airflow up to 750 CFM and requires no maintenance. The impact-resistant, 25-Watt solar panel helps withstand hail and foreign object impact. Recommended usage for this unit is one unit per 1000 sq. ft. of attic space with a minimum intake ventilation of 560 sq. in. of net free area. Adjustable humidistat/thermostat included No wiring required - Uses no electricity ETL Listed (US & Canada) 7 in. Installed Height - Low Profile Design Solar powered, operates ONLY in direct sunlight No battery back-up - runs ONLY when panel is in direct sunlight