This 2inch 50mm pipe exhaust fan is a brand new and high quality product. It is supplied with a 2inch diameter, 14700rpm, 6W or 15800rpm, 18W optional. The fan helps maintain a healthy grow room by quietly and efficiently moving large volumes of air throughout the ventilation system. It is a solution for multi-purpose use in residential and commercial ventilation. The fan is quiet and energy efficient, making it widely used in homes, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, and greenhouses. The specifications include a US plug adapter input of AC100-240V 50/60Hz, output of DC3V-12V 2A, main material of PVC, power of 6W, cable length of approximately 160cm, air duct diameter of 5cm, and a ball-bearing. The package includes 1x 12V exhaust fan and 1x US plug adapter.