This Growlush Fan Speed Controller makes it simple to manually adjust and slow the running speed of any type of outlet or inlet fan. The unit is compact, easy to use and there is no wiring necessary. Simply plug the fan controller into the mains and plug your fan into the unit and adjust the dial to regulate the speed of the fan.
At some stage throughout the year you may experience some colder conditions in your grow room with outdoor temperatures being much lower. An easy solution to the problem is to use a fan speed controller to reduce the running speed of your inlet or outlet fan to help maintain warmer temperatures inside your grow room.