Features: Function: The exhaust fan has automatic window ventilation function, when the temperature in the car is too high, it can automatically start and exhaust hot air, provide fresh air for the car, improve the driving environment; Easy to install, can be installed directly on the vehicle window. Quiet and energy efficient design: Using high-quality materials and precision manufacturing processes, the exhaust fan operates with extremely low noise, without affecting driving safety and riding comfort. Solar light control design can also save energy and reduce the burden on the vehicle battery. Multifunctional operation: In addition to the automatic ventilation function, the product also has the function of manual switching and adjusting wind speed, which can be flexibly controlled according to individual needs. Long-term drivers: For long-distance drivers, solar exhaust fans can quickly exhaust the hot air in the car, improve ventilation and reduce driving fatigue. Summer driving: Even in the parking state, the exhaust fan can still work through solar power to provide ventilation to the car, reducing the odor and hot immersion in the car Specifications: Material: ABS Fan Number: 3Pcs Speed: About 5000RPM Solar Panel Voltage: 5.5V Solar Panel Power: 2.5W Cable Length: Approx. 1.6meters/62.99in Size: Approx 24x6.5x13cm/9.45x2.56x5.12in Color: Black/White Package Includes: 1 Set Exhaust Fan note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.