With its 7% UVB output, the UVB200 delivers the balanced UVB exposure required for healthy vitamin D3 production and efficient calcium metabolism, helping prevent metabolic bone disease (MBD). This bulb aligns with Ferguson Zone 2 and the Mesophotic Zone, making it ideal for partial sun baskers that regulate their UV exposure between shaded and sunlit areas. Its medium UV intensity supports reptiles’ natural behaviors while promoting optimal health and vitality. Perfect for enclosures with basking zones and shaded retreats, the UVB200 allows reptiles to self-regulate their exposure, ensuring a well-rounded and stimulating environment. When paired with Exo Terra heat lamps, this bulb creates an ideal combination for maintaining temperature gradients and UV balance in the terrarium.