Fits the side of a container so you can install it on a shipping container's side rather than the roof. This is our newest design specifically made to fit the sides of any shipping container. The flashing has been formed to fit the unique side panels of containers. Further Product Description: Get rid of trapped heat and moisture in a Conex container. This product is an ideal ventilation choice for your Conex-brand container. CONTENTS INCLUDE: The Solar RoofBlaster Fan (patent-pending) comes pre-installed on an 8" metal can roof vent with flashing that has been designed to fit a Conex container's side ribs. A 5W solar panel is attached to the top of the vent hood by with a hinged design so the panel can be pointed toward the sun. It is wired to a two-ball bearing, 2700rpm, 96cfm fan that is rated for 50,000 hours. Unlike the plastic vents of many other products on the market, this metal vent is designed to last. It comes with a gasket and 20 screws. HOW MANY VENTS DO I NEED? We suggest one vent for every 15-20 feet. BENEFITS: Cool air will come in from intake vents near the bottom of the container (we also sell 2.5" intake vents) and will exhaust out of the Solar RoofBlaster vent. This uniform air movement helps keep your container cooler and more dry. DOES THIS FAN INCLUDE A THERMOSTAT OR ON/OFF SWITCH? No, it is not needed. Ideally, the fan should run in the summer to remove excessive heat, and in the winter to remove moisture due to prevent condensation.