at the risk of looking like a total newb ..... I'm trying to understand how to set up lights/water pumps/fans etc.. on timers & just the over all set up in general of grow room systems. is this correct ... Example, a MH light would plug into the ballast - the ballast would plug into the timer - the timer plugs into the grounded outlet ... is this the correct sequence ? I'm not looking for specifics with reguards to wattages, room size, cfm or anything, just the basic set-up sequences of lights- pumps - intake/exhaust fans, etc.. Where would a Temp. control and Humidity control be placed in a ventilation set-up sequence? any help would be much appreciated if anyone knows of a good free e-book on the subject would be great Thanks mlp63