im using a 250 hps. my yields and potency hurt because of high temps, but i do not want to invest in a/c and humidifier and pay the elec bills for these as in hawaii electricity is very high.
ambient room temps are low 80's, with light mid-high 80's. ventilation is good, extract fan running 220-240 cfm. i'm going to either go led or run a cool tube 250 hps, so i can eliminate the heat coming from my ballast in my tent.
my last harvest i only pulled 2 oz, with 4 plants, 3 gal pots, vegged 4 weeks from seed. very sad. i would like to get up to the 4-5 oz range, putting me at .5g/watt range.
i also run a couple outdoor plants, need to keep it stealth, pull 1.5 oz each usually.
this next run i am trying the sog method.
i smoke about 3 grams/day.