The Arcadia ShadeDweller Bulb is the replacement T5 tube for the ShadeDweller ProT5 Kit and LumenIZE ShadeDweller Pro T5 UVB Kit. Perfect for use with ShadeDwelling species and those living in shallow enclosures, including Leopard Geckos, Crested Geckos, Hatchling & Crepuscular Snakes, Amphibians and Inverts. The ShadeDweller bulb will help you to provide targeted areas of light and shade in which your animal can self-regulate within standard sized enclosures. This bulb provides the perfect balance of 2.4% UVB and 17% UVA for D3 production and regulation. The ShadeDweller UV Bulb has a 12 month lamp life. For far too long Crepuscular animals have not had dedicated lighting systems; ShadeDweller seeks to right this wrong! Easy to use the Shadedweller bulb can be easily fitted into a wooden vivarium or it can be placed above the mesh of a glass vivarium. Perfect for species in Ferguson Zones 1-2.