The Exo Terra Repti-Glo Intense UVB 200 High Output Compact Fluorescent Reptile Lamp Bulb is a high-intensity UVB compact fluorescent bulb designed for desert reptiles or setups with dense screen tops. It emits very strong UVB rays (similar to midday sun) to ensure proper vitamin D₃ synthesis in reptiles with high UV requirements. Available in 13 and 26 Watt options this bulb helps prevent metabolic bone disease by providing the UVB levels needed for calcium metabolism and is recommended for use in tall terrariums or on screen lids where UV penetration is reduced. Available in Multiple Wattage and Sized options