Lol wish I could say "don't worry, it's gonna be ok" Like grey said if 85 is the hottest it gets you'll be ok but if there's any chance they can go higher I'd try everything to lower them. Why don't you want to open a window in that room? IMO thats where the problem lies, all the hot air your exausting is just being trapped in the room and being recirculated, also they really need a supply of FRESH air, you need to open a window or extract outside the room. Also why don't you run your lights 18-6 and give the room a few hours to cool down.