would you go with 3x1000w hps or 5x600w hps for 70 square foot room, air cooled hoods.
Looking at about 25 girls in 3gals hp promix. Advanced nutrients.
Your going big azz. I wish I could answer these questions but I'm a stealth grower. I'd probably go with 5×600w hps for more options. GL and be sure to make a diary of it.
I'd use led..but on a budget..I'd go with 4 of the 600..each will cover a 4×4 easily.. everyone will have different ideas..up to what you feel..do enough research and you'll find DLI requirements and ppfd's the get light according to what fits...