I have one question. I currently have one 250w HPS and one 250w MH. The question is would i be better off using one 400w HPS for flower or use the two 250 watters for flower?

MH metal halide is for green growth (daylight), Sodium HPS light for flowering. But HPS can be used for both. (From what i learnt from here anyways )

Thanks, I have heard that using a hps and mh will give me more of a full spectrum and therfore better bud production. Is this true?

No one has input?

Well if your talking about useing a 250hps and a 250mh for the flowering stage then that would be better I think then just useing one 250hps.

__________________

The more watts the better is the rule.

*MH for VEG

*HPS all the way for flowering

If you want optimal lighting then 2/3 of your watts are HPS and 1/3 are MH but then you should be using light rails to move the lights. Who wants to spend money for that shit is the next question (a couple of hundred bucks for moving light rails).

Anything else is mickey mouse and defaults back to MH for VEG and HPS for Flowering.

yeah, what he said ^

__________________
When we reject the mindset that life is race, we loosen the stranglehold which education has over us. Thus freed, we might begin to learn things for more authentic and natural reasons. We may then begin to fully enjoy the delight of discovery, of intellectual stimulation, of the deep and ever-changing diversity and endless wonder our world.

Thanks Chinga. In my situation i dont belive that a light mover would be needed. I am only in the design phaze right now. I am planning on a 30" X 30" X 60" cabinet. Would I still need light rails/movers?

No. That area is too small for light rails but the rule still applies for mixed spectrums.

So there would be no benefit to use a 250 hps and 250 mh for flower vs a 400 hps?