A stepless fan speed controller gives you absolute control over the amount of air that passes through the Fan without damaging the electrical components of the fan.
The unit comes with a limited 1 year warranty.
When wiring the device ensure that the power is off. Connect the controller to the Fan motor in Series.
To adjust the speed of the fan simply turn the Knob of the controller. Clockwise to decrease the speed and Counter clockwise to increase the speed. To shut off the Fan rotate the knob counter clockwise until the Fan shuts off completely.