A. Solar-powered fans and ventilators can be used in various places that need cooling and exhaust. B. They are applicable to kitchens, greenhouses, pet houses, chicken coops, barns, stables, tree houses, attics, etc. C. The cooling fans are powered by solar panels and are relatively easy to install. Just connect the interfaces of the solar panel and the fan, and then place it in the sun for use. D. The fans are equipped with a double - layer metal protective net, which can help prevent hands and small animals from getting injured and protect the normal operation of the fan blades. E. Specification parameters: - Solar cell: Monocrystalline silicon - Solar panel power: 3W - Solar panel operating voltage: 12V - Solar panel size: 150 x 150 x 3mm - Output port: DC5521 female connector - DC cable length: 150cm - Fan power: 3W - Fan air volume: 43.4CFM - Fan size: 12 x 12 x 2.5cm - Fan speed: 2200 (RPM) - Color: Black - Material: Monocrystalline silicon + plastic + metal F. Package contents: - One 3W solar panel - One fan - Two fan covers - Four screws Only the above package contents are included, and no other products are provided. G. Notes: Light reflection and different monitors may cause some slight differences between the color of the items in the pictures and the actual objects. The allowable measurement error is +/- 1 - 3cm.