My meter reads 120 Uwatts/cm^2 all along the tube, which is plenty.
I have a UVB meter and thought I was well equipped for good husbandry. But I just realized that I don't know the spectra of my lamp. I was sidetracked by the information about the intensity of it's irradiance. My lamp gives lots of it. BUT what all iguana keepers really need is to know how much UVB between 280nm and 310 nm (the so-called UVD spectrum by BobMac) their lamps output at any given distance. The 6.2 meter doesn't help with that.
Now, I'm discouraged, because I don't know whether my lizards can utilize the UVB I'm shining on them, and now my meter is of limited use. Help!
I've sent an e-mail to BobMac, and plan on contacting the manufacturers on the next business day. But I suspect all of the UVD's are proprietary.