Retrofit UV shielding? Anyone use the Coralife Clamp-on Metal Halides?

I found a really good deal on one of these metal halide fixtures.
I read reviews and found that it has really poor UV shielding.

Has anyone had bad experiences with these lights burning their softies or other coral? If so, what's a good way to retrofit some ghetto UV filter to it?


It is a 150w, I'll be using it on a 40 gallon breeder (I know it's a bit low power), but I don't plan to keep any light hungry anemone/coral, I'm mostly getting it to add that "shimmer" effect.



Thanks for any input!