Anyone use them? If so, why do you use it?

I read an article in the current issue of CORAL Mag, & it talked about ultraviolet LEDs...

In summary it stated that a research group from Ferdinand Brown Institute And the Technical Univ. of Berlin are working on a method of disinfecting water by using a less complicated way...aka by using LEDs, they can possibly disinfect saltwater so that you don't have to use a UV Sterilizer? Maybe I read it wrong..

Anyways, I always thought that if you have great, quality water, & your params are good, then there shouldn't be a need to use a UV Sterilizer for when you introduce new coral / livestock....

Thoughts?