Ok how about this question on lighting.

I have a 250 hps but would like more for flowering.
What would be better, Buying another 250 hps and running both (500 watt) or buying a 400 watt hps and running it on its own.
Logic tells me go with the 2 x 250 hps.
Cheers peops.
ps. getting a bit on edge, my lady is not far off. The trichones are still clear but think I can see the occasional cloudy one.