The Exo Terra® 13W UVB150 bulb is designed to recreate ideal sunlight conditions in desert environments. Perfect for desert reptiles, this bulb provides an optimal level of UVB rays, essential for vitamin D3 synthesis, thus allowing for optimal calcium absorption and contributing to the prevention of metabolic diseases. It is effective up to 50 cm, and its UVA rays promote appetite, activity, and reproduction in your reptiles. The UVB150 bulb offers a high UVB light output, similar to that which desert reptiles receive in the wild. These areas receive more direct sunlight; therefore, desert reptiles are more exposed to ultraviolet radiation than any other reptile species. This bulb can also be used in terrariums with tightly woven mesh lids, as it allows sufficient UVB penetration, compensating for any potential filtering through the mesh that can block up to 50% of UVB light. For complete and optimal lighting, combine this bulb with natural light or a reptile-specific light spectrum bulb. Provide your reptiles with an ideal environment and help them maintain a healthy metabolism with the Exo Terra 13W UVB150 bulb.