I wrote: "Something to think about..... If I have a flood light shining onto a piece of plywood and the surface of that plywood is 125F, but the snake is sitting underneath that piece of plywood in the humid dark area and the temp there is only 100F what is the "hotspot" the snake is using?"

You wrote: "I understand about heat dispersion and the different types of mass used to disperse heat acts differently. Density of material used, how porous the material may be, insulating factors, etc.

If you are using a light bulb and the surface temps 20" away on that piece of plywood are 125F that light bulb (Flood light bulb) will have to be quite hot to keep that plywood at 125F. Not only that it will be extremely hot if constant air flow(depending on velocity of the flow, or amount of air inside the cage) is 65F all around."

I am not sure that I understand your point, unless your asserting that I cannot do what I said above. Irregardless of that you did not address my question at all and then made a series of assumptions which are not true.

I can and do achieve those conditions, but that was not the question.
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"We are challenging the soft bigotry of low expectations" George W.

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