I decided against the light and will resort to insulting all but one face of the tank. I covered the top mesh screen which traps alot of moisture in, and I do not need to spray water at all now.

My 50gallon tank is completely full of hides and branches and drift wood, so I dont believe the snake will feel he is in an open area. He wasnt eating for a while and then I added all the hides and such now he is back to eating.

I will keep monitoring the temperature after I insulate the tank, to see if another UTH is needed or not.

Thanks!