Reptile UVB Light T5 HO Fluorescent Bulb – High Output 10.0/5.0 UVB Lamp for Terrarium, Vivarium – Desert & Tropical Reptiles – Replaceable for Lizards, Bearded Dragons, Turtles. Versatile Compatibility – Suitable for a wide range of reptile enclosures (desert, tropical, or woodland habitats) and works with T5 HO fluorescent fixtures for easy installation.