Check the listing for details. Solar Powered Attic Ventilator - Broan 353SOBK Gable Mount. Color: Black, Condition: Open box. Listed at 295.00 USD. Operates on Solar energy alone. The remote solar panel that can be installed on the roof where it best captures the sun's energy to power the fan. Specially designed one piece, 12-Inch aluminum 5 blade fan pitched for maximum air flow. Operates quietly with no harmonic noise Heavy gauge, stainless steel bird and rodent screen with 1/8-Inch openings provides maximum protection from insects and animals without impeding air flow. 7-1/2-Inch high profile flush mount design for attics up to 1600 square feet and hurricane rated to 140 mph winds20 -Watt solar panel circuitry captures sunlight even on overcast days and totally weatherproof panels designed for optimum efficiency constructed of tempered glass to resist hail and extreme weather conditions.A 15 foot wire connects the Solar panel to the fan for remote mounting. Whisper-quiet - direct current - variable voltage - sealed ball bearing and hardened shaft motor with steel motor housing dynamically balanced for superior performanceSpecially designed one piece - 12-Inch aluminum 5 blade fan pitched for maximum air flow and operates quietly with no harmonic noiseHeavy gauge, stainless steel bird and rodent screen with 1/8-Inch openings provides maximum protection from insects and animals without impeding air flow