Yes.
In short, yes you will be fine vegging under flouros, no big deal. It does save energy, but it will slow things down a bit. However, if you were vegging under 2 600 HPS?
I would suspect that they would cause some stretch, while w/ the floros, you can have those right on top of them, you get slower growth, but shorter internode spacing also. For moms, they are great, I used to veg under MH, 400 watter, and those just allowed for way too much too fast growth, could not keep things under control for what I was doing, as soon as I switched to floros, things were much easier to manage for me.
So yes, in short, yes.:jointsmile::thumbsup:

P.S.,
Be careful criticizing the half naked fake bud girl, or the scam ad that clearly indicates that people here are lazy and stupid potheads that want to make an easy buck, apparently the powers that be here are waaay beyond criticism, and they don't like it when you point out that sponsors of this site are trying to take advantage of it's members, or portraying them to be stupid/dumb/or lazy. :jointsmile::thumbsup: