My recommendation is get rid of the UVB your have -- here is some info for that
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 8-10 inches from basking spot—the cover needs to be off the bulb for full effect of the UVB rays-- Brands to DEFINITELY ADVOID buying are as follows :
Nomoy Pet,
Zilla,
All Living Things,
Reptile-One,
URS,
MegaRay Brand,
CrawlMiracle,
Nat Geo ,
Sparkzoo reptispar,
Repti-Zoo ,
NatAll of which are cheap Chinese clones made very cheaply using very poor quality quartz glass and cheap phosphors and next to no quality control or no meaningful quality control ==> very poor UV spectrum produced including UVC and bad parts of the UVB band --- these will harm your pet.ura
domestic fittings for T8 and T5 tubes are fine PROVIDED the tube is not covered == the cover will stop all UV.
>>> a slip on reflector or use of a reflector hood is an excellent investment as it will focus and essentially double the UVA and UVB seen by the beardie , and no UVA or UVB will be wasted by radiating to areas inaccessible to the beardie
So the lethargic thing going on is lack of UVB is my guess--- being he is still a baby keep offering him greens his main diet at this point is bugs --- they usually start eating more vegies around a yr or so --
Karrie