What is your box made of? Seeing that Halogen light that close to it would make me very nervous indeed. Those lights get super hot and if thats cardboard or any other highly flammable material, I wouldn't at all be surprised to see it catch on fire. Besides, the Halogen is not good for growing pot anyways. Its the wrong spectrum of light. Glad to hear the foil is gone, but I'm not sure about the metallic paint you've put in. I've never used it nor known anyone who did. I've always used good old flat white paint, and I've had no problems at all.