I do have a thermostat regulating the uth. There is a mesh screen with clamps. I had to remove the clamp lamp which is now on a movable post. The lamp isn't in the picture. I don't use a white lamp, I use an infrared heat lamp at night. I'm waiting on a digital thermometer which I ordered and will probably go by the hardware store to buy a temperature gun. I usually run the lamp all night and into the morning. The light you see in the picture is the window. Should I put the heat light over the end with the uth?