I'm having a problem with this whole lighting thing, so I tried to do some research over the internet and it just got me more confused. Does my CWD need UVA rays??? and do all lights produce UVA rays or is it only the ones in the pet shop (basking light bulb) that produce them?? Reason I'm asking is cause it is costing me almost $14 a basking bulb when I can get the same wattage of bulb in a hardware store for $8 for two heat bulbs... (I have to buy 2 basking bulbs cause I got one of those twin flood light systems hooked up as my power source- so draco has two basking areas, on one shelf I use a 100 Watt bulb and another shelf has a 50 Watt bulb for basking) Also I have a 5.0 Iguana UVB tube light, is that right- I read it is supposed to be a 10.0 UVB for a water dragon???