Is it Radion xR15 or Kessil A700 or AP9X or AI Prime 16HD? I like the shimmer of Kessil, but I have a small 5-gallon tank, I wonder if you can dial back the intensity of Kessil down to 5% to 10%? I didn't like Kessil A160 because you can't dial it down that much. It is so blue that it hurts my eyes, but I saw Kessil A700 in an aquarium before, it was beautiful. I don't think Radion has a lot of shimmer. Any light you would recommend?