Solar Roof Vent - Solar Attic Fan - Solar RVOblaster with Brown Vent Solar-powered roof and attic vent fan Panel: 3W solar panel Fan: 2 ball bearing; 2700rpm; 39cfm; rated for 50,000hr Base Metal Flashing: 17"x17" No attic access required to install Solar-powered fan vent that ventilates a home&#039;s attic, shed or garage Helps remove hot, moist air faster than a passive vent alone Helps promotes uniform air movement throughout the vented space Helps minimize mold/mildew growth Helps prevent moist wood that can lead to rot and pest infestations Improves your living space by removing the hot, oven-like temperatures in a home&#039;s attic Makes a shed or garage into a cooler work environment Improves the air quality in sheds and other work spaces by promoting fresh air movement Prevents tools from rusting in sheds and garages because moist air is being removed Can even be installed on a dog house to prevent heat buildup on those hot summer days Easily installation (install it just like any other roof vent) The fan works whenever the sun shines The vent itself always works as a passive vent 24 hours a day, rain or shine 8&#034; diameter vent with 50.265 sq inch of net free vent area 25 year-rated solar panel (3 Watt) 50,000 hour-rated fan (15 years at 9 hrs/day) 2700 rpm/39 cfm two-ball bearing fan 4 stainless steel clips to mount the panel 17&#034; base flashing allowing for better weatherproofing for leak-proof installation &#034; mesh screen  pest-free