Me and gf own a single male Leopard Gecko, his name is Leo (sarcasm used: so original right LOL) anyways he has a 20 gallon tank but we plan to get him a 4' tank soon
Here are some photos of the habitat, lighting, and him

Current Setup
Temporary Setup (Before Current//He is in this pic) Yes, I'm using a 30W "Vintage" bulb
Way Before Current and Temporary Setups

As you can tell, my light bulbs die often and I have to use a replacement for them, the top link is how it is currently setup with the F15T8 Tropical UVB "Slimline" Fixture in use for the UVB in the cage so he wont get sick. Also "slimline" is not referring to the fluorescent, it's referring to the fixture as it is very slim and the fluorescent has the common medium bi-pins for the base.

I like your leopard gecko, he looks happy under your light setups  I’ve never had any kind of reptile as a pet, although I see a lot of wild lizards where I live. I see them on wooden decks, and I even saw one on the floor in the basement. They seem to be attracted to warm and moist environments.

Have the small green lizards outside,and SNAKES-none in the house.As long as they stay OUTSIDE-fine with me.