flor lighting and how much?

ok i currently have one t8 4ft long flour rated at 40 watts per tube and has 2 tubes. One red, one Blue. I also have 2 60 watt cfls equivents.

I am now going into flowering i actually have been in flowering for 16 days now.

I have space for another 4ft assembly. Should i buy another one? or should i just wait and save for a HPS or some sort.

I have limited space and heat may be a problem as i doing a closet grow. Temps now are in the low 70's. Overnight temps drop into the 60's so my plants have a little purple in there stems.

So question is what can i do to get the max yield. I have two plants both are felmale. They seem to be growing really well, but under budding should i invest in another light souce. Or should i just wait for my next grow and get a hps.

If you have any ventilation, I would imagine you could have at least a 250-watt light in there without any trouble. Heck, it'd probably be in your best interests to raise the temperature by ten degrees.

If you plan on doing another grow, you may want another fluorescent light anyway, for vegetation. That would work a lot better if you had more plants too, since a lot of light is wasted from a 4-foot tube when you only have a few plants.

You're not really from the Netherlands are you?