I originally got mine because something ate my frogspawn. Turned out it was a horrible worm that looked like a centipede. I never saw it till I had moonlights up.
Now, I like looking at my tank at night, it is the only time I see my serpent star eat. The new growth of coraline glows under the moonlights like a blacklight effect, really cool.
I paid $35.00 a piece for those goose neck type moonlights. Now I have a moonlight strip, which only cost $40.00. I can't direct the light the way I could with the gooseneck ones but it still looks awesome.
I recommend them!