SunRise Solar Products GBL850 11 watts motor, moves up to 850 CFM Up To 1200 square feet of cooling space. The SunRise Solar Fan � is a unique, solar-powered vent fan that pulls the heat right out of your attic. It's so effective it can lower attic temperatures by as much as 50� F! This means less heat dissipating back into your living area, less drain on your air conditioning system, and less cost to you. In fact, up to 30% less money spent on air conditioning costs alone! In the wintertime, the SunRise� helps equalize the temperature between the attic inside and the outside air. This dramatically reduces the risk of ice dams forming at the eaves--a feature that could save you thousands. Reduces moisture build-up and prolongs the life of your roof. Even in newer homes that use vapor barriers, moisture can still sneak into the attic and condense on framing boards, roof decking, and insulation. The problem may be even worse in older homes that have settled and developed cracks or air leaks around bathroom exhaust fans or light fixtures. SunRise� forcibly expels this warm, moist air, helping prevent the growth of mold and mildew, and significantly reducing the chance of rotting the roofing materials. Just one SunRise� Solar Fan is powerful enough to protect an entire home SunRise� uses the most advanced solar panels to collect and deliver power directly from the sun to our highly efficient 12-volt DC motor inside the power vent. With its 12�, balanced-hub, aluminum fan blade, the SunRise� forcibly expels hot air, providing fresh, cool air to keep your attic from overheating! Our tough, weather-resistant panels collect solar energy even in reduced light and poor weather conditions and provide maximum cooling effect when it�s needed most--in the middle of the day. The SunRise fans operate without fuel, waste, or pollution and are wind, hail, and impact resistant. All SunRise� Solar Fans come fully assembled and can be installed in under an hour. No electrical hookup needed! � Extend your roof�s life � Save you money on air conditioning � Reduce the chance of ice damming � Make your home more comfortable � Prevent mold growth and fungal decay SunRise Solar Specifications and Pricing