The setup im using is a 2'x3'x4' grow box i built with 6, 26 watt 6500k cfls, and 2, 42 watt 2700k cfls. I have an 8'' oscilating fan that is running constantly but when i close the door my box is reaching temps of over 100, 109 being the highest. Didnt think heat would be an issue with cfls...