The Arcadia ShadeDweller bulb is the replacement T5 tube for the ShadeDweller ProT5 Kit and LumenIZE ShadeDweller Pro T5 UVB Kit. Choose from either the 8 Watt bulb with 2.4%UV-B or the 14 Watt bulb with 7% UV-B. 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. These bulbs provide the perfect balance of 2.4% (RFD3SDA08) / 7% (RFD3SD08) UV-B and 17% UV-A 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.