Feature: 1. Fast Air Change: Ceiling ventilation fan provides air inlet and outlet function. Black ventilation fan cover and clear fan blades allow light to enter the van's cabin. Bring your RV into fresh air. A quick air exchange in your vehicle. 2. Humanized Design: Equipped with stainless steel insect proof net to prevent mosquitoes, insects, sand and gravel from entering the interior of the RV, the motor is made of pure copper core, reliable and efficient, low noise motor, low decibel operation and ventilation, allowing you to sleep peacefully. 3. Suitable Installation Location: Suitable for installation near the kitchen or bathroom, etc., to eliminate the smoke in the kitchen, eliminate the unpleasant smell in the bathroom, let you breathe fresh and natural air, and make your living space more comfortable. 4. Wide Application: Exhaust fan can be used for installation and use of large vehicles such as RVs, buses, yachts, etc. The dual mode of air change or air outlet can be switch with one button, no extra operation is required, and it is convenient to use. 5. High Brightness LED: The shell has 4 super bright LED strips, which can also be used as lighting, which is very suitable for installation in the dark bathroom corridor warehouse or any location. 6. High Quality Materials and Low Noise: The ventilation fans are made of engineering grade ABS plastic materials, which are anti ultraviolet, anti yellowing, waterproof, soundproof, and not easy to age. Specification: Item Type: RV Roof Vent Fan Material: ABS Working Voltage: DC12V Installation Hole Size: Approx. 280x280mm / 11.02x11.02in Dimensions of The Fan: Approx. 360x360x120mm / 14.17x14.17x4.72in Suitable for Installation Thickness: Approx. 25x60mm/0.98x2.36in Dual Mode: Air Intake or Air Outlet, One Key Switch Features: Equipped with stainless steel insect net, pure copper core motor, reliable and efficient, 10 blades, more stable operation, quieter, 2 way exhaust, 4 LED light bars, can also be used for lighting Application: Will exchange the air in your motorhome or caravan in minutes. It will blow away cooking fumes and unpleasant smells from the bathroom, allowing you to breathe fresh outdoor air. Breathe in natural, fresh outdoor air to make your living space more comfortable. Applicable: It can be used for large vehicles such as RVs, buses, yachts, etc.. Package List: 1 x RV Roof Vent Fan4 x Screw Plug Note: The opening direction of the ventilating fan must be opposite to the direction of the front of the car. If it is not installed according to the method, in severe cases, the air flow may lift the ventilating fan cover when driving at high speed! Cause product damage! It does not belong to the product itself and refuses aftersale, and there is no reason to return the product!