thanks Sarge, I'm a little confused because I only use the UVB compact florescent(mercury infested, ridiculously expensive) reptile glo 5.0 spectrum, in the day time, not at night. The women at that "commercial" pet store said that was the light I should use as his daytime spectrum, I guess i just got tricked into spending more money, that's too bad.. please correct me if I'm still not understanding what light to use. thanks man!