ok w/ that being said --- here is some info for you on UVB's
Which
UVB light should I use?
The best
UVB light is a ReptiSun 10.0 fluorescent tube HO (Or Arcardia 12% in the UK). Compact or coil bulbs do not emit the proper amount of
UVB light for a bearded dragon, and should not be used. Other brands, such as the Zilla Desert Series and ReptiGlo have been known to cause eye problems and other health issues with bearded dragons, and should be avoided. The reason that some UVB lights (Zilla, ReptiGlo, coils/compacts, ect.) are considered dangerous is because the wavelength of UVB that they emit is shorter and more intense than the wavelength of the "safe" lights (ReptiSun, Arcadia).
UVB lights should be replaced every 6 months. The T5’s are a strong bulb and only need to be replaced once a year – the T 8 every 6 months--- where as the T 8 are not as strong—they need to be placed inside the tank the T 5 10.0 bulb approx 10-11 inches from basking spot – the T 8 approx 6-8 inches from basking spot—the cover needs to be off the bulb for full effect of the UVB rays-- all you need in that tank is a really good UVB and a bright white basking bulb --- if you want more lighting you can get another dome and use a house hold bulb like a Regular 60 watt NO LED - if you need extra heat add a CHE w/ no light --- they run around $40 or so from the pet stores -- either a 75 watt or 100 watt I use a 100 watt in the winter months and off during summer months -- lights should be on 12 hrs and off 12 hrs --- the T 5 is a flat fixture and I had to order mine on line they dont sell the flat fixtures around where I live the T 8's you can find at Petco Petsmart and they take a regular fixture -- just make sure you get the 10.0 bulb - not the 5.0 HO they are more for tropical reptiles-- you should be able to use your fixture you have and just by the Reptisun T 8 bulb-- as far as basking as long its white and keeps temp to where they need to be your good
Karrie