If its 90 you should be fine. Not a lot you can do in a cabinet except pump as much fresh air in as possible.
killerweed420 Reviewed by killerweed420 on . High Indoor Temps What is your experience level? (first timer, novice, experienced...) Your Equipment: .1) Type and wattage of lights. CFL's .2) Distance from tops? 1 to 2 inches .3) Reflector type? bare bulb vanity fixutre .4) Is there a consistent fresh air supply? Intake is passive .5) Do you have an exhaust fan and a circulation fan? Exhaust is running and so is circulation .6) What are the bulb wattages, kelvin ratings, and schedule? 23watt CFL's (2-6500k 2-2700k), on a 18-6 scheduled timer Rating: 5