I want to be sure my set up for a Leopard Gecko is okay?

I decided to become a new owner of a leopard gecko. I am not going to purchase one however until I make sure the set up is healthy, and I have down the basics of correct temperature. I am hoping other leopard gecko owners can give me a little advice, as there is so much conflicting info out there. Here is what I have so far: 20L tank with screen top, reptile carpet, UTH, Day light placed on opposite side of UTH, night light placed above UTH, water food and calcium dishes, 3 hides(one on UTH side, one center, and one on opposite side of UTH will place moist paper towels in one, 2 digital thermometers(one placed close to bottom of tank with UTH, one placed higher up on opposite side with day light lamp. I also have secure wood for climbing, and decorative plants. I keep the day light on a timer so it turns of at night. Right now I have the night bulb that barely gives off any light on 24 hours as the UTH was not giving off enough heat for the tank. I am testing the temps now to see which works best to make one side cooler. Any suggestions? I was planning on having day lamp on for 10 hours then the night lamp with use of a timer. Now trying it with night light on full time. Thanks in advance for any suggestions.