First, I'd get another hide, especially if the snake is new and you're not sure how shy it is. Second, ditch the lamp and get 2 small UTH's, one for each side both hooked up to a thermostat. Put aluminum foil over the entire top of screen mesh with the shiny side down and secure it with tape. Poke a few holes in it for air, and you will be set. You will have stable humidity that will stay where you want it, good temps on the substrate, and the heat will also reflect off the foil to give some good ambient temps. This is what I ended up doing for my first tank after a lot of expensive and annoying experiments. Good luck!