the lights we are using is 2 600 watt hps cooltube setups and a 400 watt hps setup. As for the nuts, we use mgrow for veg, sometimes i use b1 for her and she loves it, in flower i will be using : sweets, vegan juice, m-grow, hygrozyme, and the last 3 weeks i will switch m-grow out for some bud blaster, and then at 2 weeks i will start using gravity.....