Ideal for Desert Dwelling Reptiles: Bearded Dragons, Uromastyx, Frilled Dragons, Horned Lizards, Collared Lizards, Chuckwallas, Sulcata Tortoises, Leopard Tortoises, Russian Tortoises, Savannah Monitors and Nile Monitors. The Zilla Strip Light Desert Fixture offers high quality fluorescent lighting for your desert reptiles. Featuring a compact and lightweight design, the Strip Light Desert Fixture is ideal for use over screen covered terrariums. The Desert 50 bulb simulates natural daylight while producing 50 microwats of UVB to promote proper calcium absorption and bone growth in reptiles. Ì_ 18", 15 watt Desert 50 UVB T8 fluorescent bulb included Ì_ Fulfills photo biological requirement of desert reptiles Ì_ Pre assembled and ready to use Ì_ Energy efficient electronic ballast for instant on, no flicker start