While I understand your standpoint on the lights I'll just say that in the wild these animals are holed up in old termite mounds/ deep borrows during the day. Therefore lights pounding down on them daily will understandably make them uncomfortable IMO. Some are more adaptable than others. I have a couple that need black out boxes in my racks for even the daily natural light. I feel that natural light still gives them that day cycle without it being right in top of them making their enclosure uncomfortable.
I Have heard the same from my vet. "All captive animals need UVB" but I also look at the animal. Balls are quite private and secretive animals. They stay holed up in pitch black until they go out to hunt at night. With the animals I've had experience with, it just seems like the bright bright day bulbs tend to be too harsh on them.


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