How about this Ballist??

Hey,

Im about to buy lights but still a bit unsure.. Im currently looking at this ballist Grow Lights > Ballasts > Ventronic 600W Digital Ballast and was wondering if that would be perfect if i also bought a sodium lamp and a MH lamp..for the different stages??

Would a Grow light Grow Lights > Grow Lights > Cool-Star Grow Light with a sodium and MH bulb do the same job but at a lower quality?? or would it be completely different?? Just wondered because i may need to get a 250w/400w as im playing on using a small grow tent..

Thanks

my advice is to go digital they use less power produce more light,cooler,quieter,lighter
and they last longer than the old ones good growing

is that one not digital??