here's the set-up...
1000 Watt switchable balast, so 1000 MH for veg, then 1000 HPS for fruit
Medium is a "soiless" mix (which looks just like soil, lol). But using 2 gal grow bags with a mixture that is 2 parts Pro-Mix & 1 part Fafard #3B. Add to that 1 or 2 handfuls of Perlite. So there ya...