1. [Solar energy]: A 20-watt, 12-volt solar panel with a USB output port, which can be used outdoors conveniently. 2. [Wide application]: It is suitable for kitchens, greenhouses, pet houses, chicken coops, tree houses, etc., to maintain a comfortable temperature level. 3. [All-day operation]: The fan is equipped with a USB adapter. If you want the fan to work at night, you can use a power bank so that it can run continuously. (The solar panel can make the fan run quickly under direct sunlight. When the sunlight is weak, the solar fan may run more slowly or stop working.) 4. [Keep air circulation]: This portable fan can help keep the indoor air circulating. Keeping the air clean can help eliminate odors from pets, tobacco, etc. 5. [Easy to install]: The USB cooling fan is powered by a solar panel. It is easy to install. You just need to connect the interfaces of the solar panel and the fan and place it in the sun to use it. 6. Power: 20 watts 7. Fan size: 12×12 cm 8. Voltage: 12 volts 9. Current: 800 mA 10. Interface output: USB + DC 11. Color: Black 12. Material: ABS 13. Package contents: - 1 solar panel - 1 fan - 1 car charger - 1 clip - 1 carabiner 14. Only the above package contents are included, and no other products are included. 15. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual one. A measurement error of ±1 - 3 cm is allowed.