Feature: 1. Outdoor solar panel, using monocrystalline silicon materials, effectively convert sunlight into electricity. 2. When connected to a solar panel, the fan can run without using a rechargeable battery. 3. Sunlight generates hot air, and the fan rotates immediately to dissipate heat in time and provide ventilation. 4. If you need the fan to work at night, you can use the power pack, which is easy to install and use. 5. It is widely used in greenhouses, pet houses, kennels, chicken houses, tree houses and RVs. Specification: Item Type: Solar Panel with Fan Material: Monocrystalline Silicon Power: 5W Working Voltage: 6V Working Current: 0.83A Weight: Approx. 282g / 9.9oz Solar Panel Size: Approx. 145x145mm / 5.7x5.7in Fan Size: Approx. 120x120x25mm / 4.7x4.7x1.0in How to Use: In the sun, when the fan is connected to the solar panel, the fan can run. Package List: 1 x Solar Panel 1 x Fan Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.