1st grim u can use fluo lights for now home depot, lowes would have them until u get your 400w . 3x3 area is what a 400w would take care of. if you want to grow 14 plants 1000w is what u would be needing. remember 2 weeks with the fluo lights then put your MH in until they are 12inchs tall and then slap in your HPS 12/12 for the remaining grow.