Artificial UV lights are far less aggressive than natural UV, but you'll tend to find that these cathode kits are referred to as NUV "Near-Ultraviolet" which is not the same as actual "blacklight" UVs because the wavelength is substantially weaker, as far as "Would it keep your loop clean?" I very much doubt it would have a noticeable effect, you're better off with a good quality Biocide or Killcoil.