Apollo ballast 2'7x4'11x6'7 Tent with a 600 watt hps air cooled 6 inch with a 440 cfm fan on a speed controler and six inch ducting with daystar hood. I also have a oscilating fan.
Had a bigger tent and bigger light. Temps got up there during hot days. The room was also an enclosed space with no ventilation. God made weed. Man made alcohol. Who do you trust?
Keep the heat in your house at 66. Will help. Had 2 600 s in a 2 x 4 x 5 tent. When my temp in the house was above 70 the tent was at 90. With an 8" fan blowing through. In a 5 x 10 x 7 tent now 82 is the hottest it's got. Have co2 so I don't care. Make sure you vent heat outside the room at minimum. Outside even better.