jackdrew212
Active Member
What is LST?Are you running two rooms at once such that you need a veg AND flowering room? If it's only this grow why not veg under 400MH and switch bulbs to HPS when you go to 12/12. This assumes you're using a "switchable" (digital) ballast.
I don't use CFL's except for my cloner so I can't speak to their capacity.
Your yield will depend on a lot of things. If you LST you'll get a lot more but you may not have the room to do that. I can usually get about 6oz under (1) 400w and I DON'T LST....I don't have the room either.