Feature: 1. Two Ways: When the solar panel is connected, the fan can run, and it can be used alone by plugging into the USB port of the computer. 2. Simple and Convenient: When connected to a solar panel, the way the fan works depends on the sunlight. It saves the trouble of pulling the line, and is safer and more convenient. 3. Sunlight Determines Work Intensity: When the sun is strong, the fan works very fast, when the sun is not strong enough, the fan may work very slowly or even not work. 4. Working Process: When the fan is irradiated by the sun to produce hot air, the fan will immediately rotate to dissipate heat in time and ventilate. 5. Power Bank Charging: There is no rechargeable battery in the fan. If you need the fan to work at night, you can use the power bank. Specification: Item Type: Outdoor Solar Panel Fan Color: As Pictures Shown Weight: Approx.331g/11.7oz Solar Panel Power: 5W Solar Panel Voltage: 6V Solar Panel Current: 0.5A Solar Panel Output Interface: Single USB Outlet Fan Diameter: Approx. 137mm/5.4in Fan Power Supply: USB Plug 5V Fan USB Cable Length: Approx. 70cm/27.6in Material: Monocrystalline Silicon + PET Laminated + Iron (Fan) Solar Panel Size: Approx. 145x145mm/5.7x5.7in Solar Panel Chip: Monocrystalline Silicon. Package List: 1 x Solar Panel1 x USB Fan Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.