Description 100% brand new and of high quality Frame and blade are made of ABS material, durable and reliable. Effective, extremely quiet ventilation, clears humidity and odors quickly. Build-in copper motor with thermal protection, can work continuously without maintenance. Suitable for marine boat, yacht, RV, trailer, motorhome, etc. Specifications: Color: white Material: ABS Rated voltage: 12V Fan diameter: about 136mm Fan height: about 100mm Mounting hole: about 118mm Rotate speed: about 1800r/min Air flow: 60CFM Package include: 1 set of exhaust fan 1 pack of screws 1 pc xEnglish manual Instructions for use: 1. Power connection: the red wire is the positive pole of the power supply and the black is the negative pole. 2. The height can be adjusted according to your needs. Use a saw to cut off a section along the car mark. 3. This style is silent. It does not involve multiple gears, so the switch on the product defaults that it will not involve multiple gears switching, and only serves as a switch (ON-OFF). Can be connected or not. Wiring mode: the middle pin is connected to the positive pole of the power supply, and one of the two pins is connected to the load (red wire of the fan). Note: 1. Due to the light and screen difference, the item& 039;s color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering. High quality store for you