I know this is an old thread, but I wanted to add in here.
My 180 reef is entirely lit by the BuildMyLED 3 channel lights and I love them. They get splashed on all the time and it doesn't bother them. I have the 6 channel dimming module controlling 6 different lighting channels and it works great. And yes, you can just cut off a simple audio connector and wire it into the dimming module, that is what I did.
These are great lights.
There was a period of time during which it was hard to get support from them. But they are through that now and have always provided excellent support to me.
Don