For SE, the 14K is only available as Aquaconnect which is really expensive, excellent bulb but way too pricey. Odd thing is phoenix doesn't make the SE bulb for Aquaconnect. We are trying to find the actual manufacture so we can get a better deal and get the SE price down, but so far haven't had any luck.
So if you can swing the money, the AC is a good high quality choice. For lower price, we have been pretty pleased with 14K hamilton, or wait and see how the 15K XM does. Maybe we'll have something going on AC 14K by then too.
thanks