Best Seller | Reptile UVB100 Bulb, 26 Watts This bulb emits optimal levels of UVB, similar to that of environments such as rain forests or other tropical locations. The optimal Vitamin D3 yield index ensures vitamin D3 photosynthesis to aid calcium absorption and prevent metabolic diseases. ... more Reptile UVB100 Bulb, 26 Watts This bulb emits optimal levels of UVB, similar to that of environments such as rain forests or other tropical locations. The optimal Vitamin D3 yield index ensures vitamin D3 photosynthesis to aid calcium absorption and prevent metabolic diseases. Petco.com | | $27.99 go to store |