Well I spose I should update you guys on this:

I intend on getting the following lights:
A two foot ballast for the top with cool/soft white light for the vegging stage
Two 2600 lumens soft/cool white light for the flowering stage (to be placed on the two sides of the box to hit the underfoliage)

The way my logic sees it, this way it will make the plant grow to an extent, then I turn on the powerful light when it's flowering and it makes it produce more THC. Am I right or...?

One thing though, which light do I use for the flowering and vegging stages? Cool for vegging and soft for flowering? Other way around?