I think you'll find that will be the problem, I was in the same situation If you're using a heat lamp as well i'd take it out and put an exo terra natural light or 2.0, it doesn't produce enough UVB to be of any use but will provide a day and night cycle and make it easier to view the frog a heat source on the bottom and one on the top isn't good, means the frog can't escape the heat