Thanks for the info about UV restrictions and indoor lighting...didn't know that.

ReptiSuns have consistently rated well compared to many other brands. I don't consider them expensive...you hardly ever get a defective one, they won't burn or hurt eyes, explode when sprayed, and I have healthy animals. One MBD or deficiency vet bill will make up for anything you save on an untested bulb. If you use double tube fixtures try a combination of one new ReptiSun and a "used" tube until the used one dies...get more general lighting for plants out of them that way.