[Specifications]:This RV ventilation fan operates at a rated V of 12V,with a current of 0.36A for two fans and a power rating of 4.3W for two fans.The external for dimensions are 35cmx18.6cmx5cm,and the hole size is 32cmx15.5cm [Waterproof Design]:The RV vent fan features a waterproof grille that allows rainwater to down the vehicle's wall during rain or regular car washes,preventing water from entering due to its slanted design [Integrated Protective Grille]:The air vent ventilation exhaust fan comes with an integrated protective net cover that prevents foreign objects from entering,ensuring your vehicle's interior remains clean and safe [Premium Material]:Made from ABS material that is resistant to sun and discoloration,this silent fan is designed to withstand harsh weather conditions while maintaining its appearance [High Flows Fan]:Equipped with two large fans,this product provides good cooling efficiency with low noise output,making it ideal for use in your RV or trucks