Used and recommended by zoos, veterinarians, and the top reptile professionals in the industry, the Zoo Med ReptiSun 10.0 T5-HO UVB Fluorescent Lamp is the perfect addition to any larger sized reptile habitat holding creatures such as bearded dragons, uromastyx, monitors, tegus and a wide range of other species of desert dwelling reptiles. The Zoo Med ReptiSun lamp delivers a stronger output of essential UVB light and brighter light (twice as strong as standard ReptiSun 10.0 lamps), and helps to prevent and reverse Metabolic Bone Disease, an ailment commonly seen in captive reptiles. The lamp itself is 12" in size and sports an output of 15 watts. These high quality lamps are made in Germany. 12"