Repti Glo 5.0 Compact Tropical Terrarium Lamp is ideal for all tropical and sub-tropical reptiles. The Exo Terra Repti Glo 5.0 has a moderate to high UVB output, similar to that of shady environments such as rain forests and other tropical locations. Reptiles living in these habitats receive less UV radiation because of the many climatological conditions (fairly high humidity, changes in weather, etc) that prevent direct sunlight from reaching them or their basking sites. Provides necessary UVB rays for optimal calcium metabolism and stimulates appetite, activity and reproductive behaviour through UVA radiation. Comes in two different options: 13 Watt or 26 Watt.