Ideal for all desert dwelling reptiles. This bulb offers a high UVB output, which is crucial for D3 conversion and optimal calcium metabolism in reptiles. It provides the necessary UVB rays to prevent metabolic diseases, especially for terrariums with dense screen covers that can filter up to 50% of UVB rays. The high Vitamin D3 yield index supports vitamin D3 photosynthesis and aids calcium absorption. Longer sizes can be used across multiple terrariums. The packaging includes detailed information such as a Full Spectral Graph, UV Spectral Graph, Reptile Bulb Rating System, and distance-related data including UVB output, Photosynthesis, Ferguson Zones, and the Exo Terra Reptile UVB Chart. This bulb is also beneficial for tropical and sub-tropical reptiles, stimulating appetite, activity, and reproductive behavior with its UVA rays.