Maybe something along the lines of "Lights are only needed for one or two purposes. One, they are needed to keep live plants, if you choose to do so, and two, you may want them for better viewing. Other than that they are not needed. Red-eye leaf frogs are extremely nocturnal and do not require lights."
How's that?

I don't keep any lights on my red-eyes and I have three enclosure of them, the adults, froglets, and tadpoles. I have lights on the dart frog, because he has plants in his enclosure. The box turle, because he requires it. The White's and Colorado River toads, because they are display animals in the living room.