Feature 1Electric twoway exhaust fan, with a rain sensor function, when it rains, it will automatically close the lid to prevent rainwater from entering the car. 2Automatically open window when the temperature is high, well controlled the temperature and airflow in the car . Automatically close the window when driving to avoid damage to the ventilation fan during driving. 3The remote control is equipped with onebutton window opening/closing, air volume adjustment, and twoway air exchange functions. Two powerful struts, the force is more balanced. 4It has air supply and exhaust functions, bringing in freshed and light air. The ventilating fan cover allows light to enter the compartment of the truck. 5Equipped with stainless steel antiinsect mesh to prevent mosquitoes, insects, sand, etc. from entering the interior of the RV. The box and cover are made of imported plastic, which is resistant to yellowing. 6The motor is made of pure copper core, which is reliable and efficient, and runs with low noise. The fan has 10 blades, which is more stable, waterproof and not easy to age. 7It is suitable for large vehicles such as motorhomes, buses and yachts. Eliminate the smoke in the kitchen and remove the unpleasant smell in the bathroom, and make your living space more comfortable.Item Type: RV Vent Fan Material: ABS Motor Current: 0.5-2.5AHole Size: Approx. 340 x 340mm/13.4 x 13.4in (maximum: 380 x 380 mm)Dimension: Approx. 420 x 420 x 182 mm/16.5 x 16.5 x 7.2inInstallation Thickness: Approx. 38-95 mm/1.5-3.7inMotor Power: 5WPower: 5-30W adjustableRPM: 1000-1800/minuteFan Blades: 10Applicable to: Large vehicles such as motorhomes, RVs, buses, yachts, etc.Features: The shell is made of imported and anti-yellowing plastic; equipped with stainless steel meshRemote Control Battery: 1 x CR2025 button battery, 120mAh (include)Installation Method: Opening hole installationUsage: Install and fix and start workingWiring: Black wire connected to negative pole, red wire connected to positive pole, blue wire connect to the handbrake signal wire (the role is to automatically close the window when driving) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Vent Fan1 x Remote Control1 x ManualNote1.The opening direction of the ventilating fan must be opposite to the direction of the front of the vehicle. If you do not install it according to the method, the airflow may lift the cover of the ventilating fan when driving at high speed! It will cause product damage! It is not a product problem, refuse aftersales service and no reason to return or replace.2.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.