RAM Heavy Duty Wall Fan, 100W, 450 mmRAM Heavy Duty Wall Fan, 450mm, 100W Air movement is critical in a controlled grow environment. The RAM 450mm high performance wall fan 3 speed increases the airflow in the grow room without taking up space due to its robust, wall mountable construction. The fan is equipped with an oscillation function that enables the fan to distribute large amounts of air evenly in the growing space, with the strong metal blades providing increased reliability.