Features 1、Intake Exhaust Fan: This roof fan has both intake and outlet modes and can be switched with one click to exchange air in your motorhome or caravan within minutes. 2、Not Affect Light Entering: Adjustable angle open lid and clear fan blades allow light to enter RV, equipped with stainless steel insect nets to prevent mosquitoes, insects, sand into RV interior. 3、With Lighting: The fan housing with 4 white LED lights, light and fan switch separate control, very suitable for installation in the gray bathroom corridor warehouse. 4、Low Noise: 6 blades fan and pure copper core motor with high efficiency and low noise operation, which ensures you can sleep peacefully with low decibel air circulation. 5、Highly Durable: The roof exhaust fan is made of engineering grade plastic, waterproof, anti ultraviolet, anti yellowing, and not easy to age, long service life. 6、Widely Used: The fan can be used for large vehicles such as motorhomes, buses and yachts to modify, eliminate smoke in the kitchen, eliminate unpleasant smells in the bathroom, and let you breathe fresh air. Specification Item Type: Rv Roof Vent Fan Working Voltage: DC12V Installation Hole Size: Approx. 280 x 280mm / 11 x 11in Fan Dimensions: Approx. 360 x 360 x 150mm / 14.2 x 14.2 x 5.9in Applicable Installation Thickness: Approx. 25-60mm / 1-2.4in Dual Mode: Air intake or air out, one click switch Function: Equipped with stainless steel insect proof net, pure copper core motor, reliable and efficient, 6 transparent fans, more stable operation, more quiet, 4 LED lights, can also be used for lighting Application: Will exchange air in your motorhome or caravan in minutes. It will blow cooking fumes and unpleasant smells away from the bathroom, allowing you to breathe fresh outdoor air. Breathe in natural, fresh outdoor air to make your living space more comfortable. (Please close the sunroof for driving) Installation tips: Step 1: Make sure your wall thickness is within the installation range Part 2: Open 280 x 280mm square holes in your desired installation position Part 3: Put the exhaust fan into the open hole and link the LED light harness and the fan power harness to the circuit (red positive black, white positive black negative) The fourth part: the stainless steel cover is fixed with screws and the knob is installed to complete the installation Package List 1 x Roof Exhaust Fan (With Knob Handle) 4 x Short Screw 8 x Long Screw