Bearded Dragons require a 75-120-gallon glass or plexiglass tank. On top of that, they need a UVB light bulb and a heat lamp. In the Australian outback, where they originate, there's no shortage of direct sunlight to keep them healthy, but since sunlight can't penetrate glass, your beardie misses out on crucial vitamins. These lamps make sure your beardie is getting the nutrients they need and keep them comfortable. Make sure the heat lamps you buy don't have a red light, as it hurts their eyes. According to reptile guide, their tanks should be 85 degrees Fahrenheit and upwards of 95-110 on the warm side.
Decorations are very important for the enrichment and well-being of your beardie. The best decorations for them are things they can interact with. Caves for them to hide in and trees for them to climb will ensure that they feel secure and are getting exercise.
Do not use UVB bulbs. In order for bearded dragons to get vitamins, they need to constantly be exposed to UVB light, which is easier for them if there is a light that stretches across their tank.
Follow this handy guide to figure out how warm and humid your tank should be.