The Arcadia 14% UVB Dragon lamp is the most powerful HO-T5 reptile lamp in the world. It has been made in Germany by experts to provide not only high quantities of UVB radiation but to also provide this energy without any limitation to the colour and quantity of visible light. Available in 24W, 39W and 54W (22", 34" and 46" lengths). The Arcadia Reptile Dragon lamp is a bold, white, full spectrum and VERY bright High Output T5 UVB projection lamp for captive reptiles. The lamp represents an almost doubling of light (LUX) and has a CRI of over 95 which will enable you as the keeper to see your animal in all of its natural glory. Upper index basking for a desert species is set at a massive 15 or 35-40cm from the reflected lamp to the animal back at the basking or shortest point. Making this lamp simply perfect to be used in vivaria of 20/50cm high or more. It will also help greatly for those that use terraria with a mesh top.