Active Air 18" Oscillating Wall Mount FanThe oscillating fan is equipped with 3 speed fan settings, which give a 90 degree oscillation action. If the space in your grow area is limited, then the 18 oscillating wall mount fan will be the perfect solution. For driving the triple fan blades, the grow light uses the latest fan motor for the same. You can adjust the speed settings of the fan to drive away from the system heat. Also, the fan gives more variance. The metal guard coating does not