Sun Aquatics 14K bulb very similar to radium???

[ree-fready]

I`m running a 250 14k and a 400 14k on m58 and m59 ballasts respectively and they are very blue, I can`t believe how blue, and there is not much difference in intensity between the two. In my mind the jury is definetly still out on these. I probably have 250 hrs. on them. I tried the 10k`s for a while, 450 hr`s, and they seemed very yellow to me as well. Does ab stand for aquline busch? thanks