The brands of UVB/UVA lights we have used with great success over the years are Zoo Med Reptisun 10.0 or higher, Arcadia 10.0 or higher & Exo Terra Repti Glo 10.0 or higher. The best shape and broadest exposure comes from long tube bulbs(T5). Compact bulbs are available and can be used, but in very small cages where the bulbs are able to be within 6''-7'' of the dragon unobstructed. For adult sized cages or larger T5 bulbs are highly recommended.