yes you can veg them...

Keep the lights(CFL's) as close as possible... about 1 inch or less...

If you have healthy vigorous growth... your plants will probably get to big for those lights in 4 weeks... and by "to big" . I mean that the foilage will become so thick that the plants will become a bit spindly and stretched out... But nothing serious or fatal.... definitley better than nothing..

love

And you can always clone them... this will keep the foilage thinned out and the plants from getting to tall.. and then you will also have CLONES

love

: )