If I read the same site it showed several MV lamps at much higher UVB levels than nature provided for an entire day at different ranges. Just my opinion but I would shoot for a level closer to 9 am and 4 pm. The reason being that most bearded dragons are most active during the mornings and late afternoons. They tend to hide during the hottest parts of the day. Since our dragons don't have the same enviroment and choices as in the wild an average for the area the animal comes from would seem to be reasonable. I am talking about UVB not UV light so maybe I misunderstood.

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