That's understandable lee, it's very possible that I could have caused it, but I wouldn't like to think there were any light leaks. The setup is in the back of my huge closet, covered in plenty of Panda film to prevent light leaks. The closet door also remains shut throughout the entire dark period with very little, if any, light coming through the cracks. If for some reason I do need to open the door, I make sure to turn off all lights in surrounding rooms, and only use my green flashlight. As far as temps go, I never really had much of an issue there. The hottest it has gotten was 86 degrees.