ok. I've got nirvana Top 44 seeds on their way. I have a 1x1.3 foot box with a 45w that says it gives 2000 lumen light output. Is that going to be enough light for 2 plants?
Top44 is a shorter plant so you might be able to get away with it, but I'd try to get another light in there if possible. You want 6500k lights for vegging and 2700k for flowering.
I would add a few more, definately give you much better results. I use six 150w CFLs in my box and it is adequate. And keep them as close to the plants as you can without burning them.