IMHO for what it's worth, most of us are going to get to the point where we want "just a couple" more plants... lol!
A 250 is VERY easy to outgrow.
Get a 400 or 600 to flower under. TRUST ME!! Little lights seem soo..... little... so soon!
Before you know it, you're gonna have a 1000 and be wondering what to do with your old light! HAHAHAHA and the next part is lookig for somewhere to put it... IT'S A SICKNESS I TELL YOU!!!