[Cool Down & Ventilation]The Solar Panel Fan can push the heat air out and push the cool air in,which effectively reduces the indoor temperature and keeps the air . Max rotational speed 3000 r/min and 200 CFM which is an solution for the exhaust of small chicken houses, greenhouses, sheds, pet rooms, and windows in hot summer.[Easy to Use]The cooling fan is powered by the solar panel, and easy to install, just connect the interface of the solar panel and the fan, then put it under the to use. The solar panel runs the fan fast under direct sunshine and the solar fan will working more slow or stops working when the sunshine is weak.[Safety Protection & DIY Air Circulation System]The fan is equipped with a double metal protection net to prevent hands and small animals from being injured and to protect the normal operation of the fan blades. You can purchase 1 or more according to your needs, connect it in the middle or both ends of greenhouse or install it in the wall, DIY your own air circulation system.[Waterproof & Long Service Life]The solar panel has been coated to prevent rain from causing short circuit or damage which is suitable for outdoor environment use. (The solar panel is waterproof, be careful not to water on the USB interface) There is no built-in battery in the solar fan, only work when the shines.Specifications:Voltage: DC 18V & USB 5VSolar Panel Power: 10WMax RPM: 3000 r/minCMF: 200 CFMSolar Panel Size: 8.46 X 7.28inch(21.5 X 18.5cm)Fan Size: 4.72 X 4.72 X 0.79inch(12 X 12 X 2cm)Material: plastic + metalColor as shownPackage Contents:1 x solar panels1 x1 x DC extension cordOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.About UsWe provide the good product with the best price,we support Wholesale/Drop Shipping Order1. For Drop Shipping order, please remark"dropshipping order", we will prioritize it.2. For Wholesale/Drop Shipping orders, if you have any ideas about the price or package,please contact us in advance,we will give you the best service to satisfy your demands.About Shipments1.We will send out the orders ASAP once your payment is completed normally.2.Please write your complete delivery address with correct phone number and zip code, especially please confirm your full name.About After-sale ServiceWe are reliable seller and we have our professional after-sale service for all of our customs. If there is any question about the order,please contact us in advance ,we will always here until you get a happy answer.About Feedback1. Please check the package and item when you get carefully to make sure there is no problem.2. If you have any problem or are not entirely satisfied with your package,please don’t be hesitate to contact us first before leaving negative feedback. We will resolve the problem to satisfy you.3. If there is no problem, please leave us five star positive feedback.Your affirmation is our greatest motivation ! ! !