Why do we use Controllers?

A. Controllers are used to automate a growing system.

Advantages:

Maintaining optimum levels for the parameters you are needing to achieve
Less stress at all stages of growth
Saves the grower time
Eliminates the guesswork
Consistency of Yield - apply the same control with every crop
Monitors the parameters constantly which are visible to the grower

Disadvantages:

Initial set-up cost
Having in-adequate plant management skills
Purchasing a controller not suitable for the job
Not following the manufacturers instructions