This is my current set up for my little dude. I’ve changed a few things since taking these but it’s still basically the same. I have a ceramic bulb on one side and a low wattage heating bulb on the other side mostly for light with a uvb bar light towards the back. The ceramic stays on all the time and the uvb and light bulb are on a timer to stay on from 8am-8pm. At night I also have thin wooden boards to put in the center to keep the heat in overnight since I like my house cold. So it stays in the 80s day and night. The demensions of it are 3ftx4ft and the boards on top are 3 1/2ftx18inches I believe.