Matt I checked around on this, Most have said, that the cost comparison is minimal to made units and the health risk to corals and animals are to great to attempt. One guy made one and found it really worked well but he ended up changing bulbs so often that it became problematic, So it is in his attic now. Bu8t maybe there is someone out there, that built one that has other testimony. But from what I saw it I dont think it somehing I would try.