ok my setup is a DS90 tent with a 400w dual spec sunmaster lamp,600w ballsast that'll run mh or hps, the ac unit runs at about 1000w power consumption
i also have 2x 4" inline cetrifugal fans,4" carbon filter.
the ac unit, light and one of the fans are controlled via a timed contactor and the other fan inside the tent which is hooked up to the filter keeps the negative pressure in the tent to deal with the scent.
it keeps my temps between 63F lights off and 75F lights on RH is between 38% and 58%.