18inch (45cm) Outback Max Globe. Emits 10% UVB at 30cm. Most diurnal reptiles require UV light for increasing appetite and activity, bringing out their colour and most importantly for the metabolism of calcium. This range of reptile lighting has been independently tested and has been found to provide recommended levels of both UVA and UVB. The 10.0 is suitable for diurnal & desert species. Sizes available are 18, 24, 36 and 48inch. Also available in the 5.0 strength that is suitable for nocturnal & temperate species.