Lighting during veg

sure can

Cool man thanks. What would be the difference between using a 250mh to a 400mh during veg?

Your plants are probably going to be shorter/bushier with closer node sites with the 400 compared to the 250. Least that's my opinion.

That sounds great to me!

Thx.

Of course you can.

I was considering using Lumitec dim-able ballast so I would also probably use Lumitec bulbs with the setup. I haven't yet checked the lumen output on that brand, but I figured why not pair them up (same company).