Just a thought, do you have any ceiling fans? Those are very helpful in the heat of the summer. Well honestly mine never goes off in this room. And when I am sewing I have the one in there going as well. I only have one light, but leave the blinds open just a tad to let in some light from outside. But we also have sunscreens, and double pane windows that keep some of the heat outside. Of course I think some of you are experiencing some very hot weather right now, and hopefully this heat wave will pass for you soon, and things will cool off.