Zoo Med ReptiSun 5.0 UVB Mini Compact Flourescent Replacement BulbZoo Med ReptiSun 5. 0 Compact UV Fluorescent Bulbs are here! Get the quality of Zoo Meds ReptiSun linear fluorescent with a new threaded base that fits into any standard clamp lamp; no separate ballast to buy! Ideal for all tropical species of reptiles and amphibians Self ballasted compact fluorescent UVB lamp Standard threaded base fits into any clamp lamp These energy efficient bulbs are long lasting, cool burning, and feature standard 5. 0 UVB