Zilla Canopy Series Fluorescent UVB-UVA Bulbs Desert 20 WAnimals that live under a canopy or in rock crevices usually don't get as much direct sunlight, therefore, their UVB needs are lower. Zilla Canopy UVB UVA Bulbs provide lower intensity UVB and UVA for these specific animals. Great for reptiles and amphibians that require low intensity levels Provides UVA and UVB for calcium absorption Fits in a standard 8. 5" or larger dome