Feature:1. HIGH EFFICIENCY CHARGING: Solar powered exhaust fan adopts premium monocrystalline solar panel for high efficiency charging, stable and reliable, suitable for outdoor environment.2. USES: 6.5 inch exhaust ventilation fan, effectively remove indoor wet and odor. With bracket design, simple and solid, can freely adjust the installation position.3. 50W 12V SOLAR PANEL: With 50W 12V solar panel, it can be powered by sunlight, environmentally friendly and energy saving. The solar panel can be used by placing it under the sunlight.4. PROTECTIVE NET: Professional round duct fan with protective net to avoid accidental injury and protect the internal parts of the machine.5. BATTERY STORAGE BOX: Solar powered exhaust fan with battery storage box, install 3 batteries (not included) can support 24 hours operation.Specification:Item Type: Solar Powered Exhaust FanMaterial: ABS, Monocrystalline SiliconWeight: Approx. 660g/23.3ozSolar Panel Power: 50WSolar Panel Size: Approx. 16.5x18cm / 6.5x7.1inExhaust Pipe Fan Diagonal Size: Approx. 16.5cm/6.5inExhaust Pipe Height: Approx. 10cm/3.9inExhaust Pipe Outlet Diameter: Approx. 9cm/3.5inBattery Storage Box: 3xBatteries (Battery Storage Box Is Not Shipped with Batteries) .Package List:1 x Solar Panel 1 x Exhaust Fan1 x Battery Storage Box (Battery Not Included)1 x Bracket1 x Bracket Fixing Plate3 x Screws 3 x Expansion Rubber StudNote:Manual measurement please allow some error.