Includes a 10W solar panel, 2 fans, you just need to connect the solar panel to the fan's conversion cable and then place our solar fan in the sunlight, the fan can reach 3000r/min with a large airflow of 200CFM, which is enough to meet your . You get 10.6inch x 6.9inch solor panel; 4.7inch x 4.7inch dual fans with 2.6ft/0.8m cable. The upgraded solar panels are larger than traditional solar panels, have a area of exposure to the sun and wind power is more concentrated, which operate more efficiently, -saving, good for the environment and reduce your cost. Constructed of heavy-duty aluminum housing helps the solar powered fan withstand shocks and operate in harsh outdoor environments, The fan motor part (PCBboard/wiring/bearing) is coated to prevent damage from short circuits or rain. Waterproof grade up to IPX65, Great for outdoor environment use. 10W High efficiency and enhanced performance solar panel can easily push the heat air out and push cool air in, which effectively reduces the indoor temperature and keeps the air fresh. Multi-layered sheet lamination enhances solar cells performance and - low iron tempered glass can withstand the changing climate and provide more than 10 years service life. The solar panel fans kit is suitable for greenhouse, chicken coops, shed, dog house, window exhaust, barns, cowsheds, tree houses, lofts. Also fit for RV, outdoor camping, yachts, etc, which is widely applied for place required cooling and exhaustion, circulates the air more efficiently, reducing room temperature and keeping the air fresh., Weight: 2.44051724034 pounds, Manufacturer: Frewurwer