Please get rid of this UVB is a coil compact fluorescent bulb (recently replaced) on top of the tank. Is it the 26 watt or the 13 watt? Here is some info on UVB's most on here do not recommend the coil UVB
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 12-15 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-- here is some info on the coil 26 watt
The 26w version of the UVB150 is similar in output to a T8 tube when using a reflector. The beam isn't as wide (depending on the length of the tube) but the output strength is very similar. If it was sitting about 6-8'' above the main basking area then it was likely providing adequate UVB. It's the lower wattage (13w) versions that cause concern since they aren't strong enough to provide adequate UVB at a safe distance. To be honest w/ you I would get rid of the coil all together and replace w/a 24" fixture w/ reflector --- at this time the Reptisun Tubes are the best on the market
Karrie