Was tyhe fridge outside in the 100+ and stayed cool enough to grow or do you have some cooling? Im just test running mine, I have fridge for cooling and have it wired to a thermostat. It is like 62 in my garage where the fridge is and with about 200 actual watts of fluorescent it is getting over 85 in there and my cooling is kicking in. I have a small muffin fan pushing fresh air through as well, plus I rewired the circulation fan in the fridge to run all the time.