SMS Fan Speed Controller

This fan speed controller from SMS is a great unit for controlling the running speed of just one 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.

This SMS fan speed controller requires no wiring you simply plug the unit into the mains supply and plug your fan into the unit, then set the dial to the speed you require the fan to run at to extract or supply air at a lower rate.