UV Light Stick

So i apologize for posting this here (IF its the wrong thread for it) but i wanted to hear some peoples thoughts. Anybody see a beneficial use for something like this? I could see it helping if you were stuck using stream water or some crazy shit lol

anyways, just thought it was interesting, gimme your thoughts!

http://news.discovery.com/tech/water-stirred-with-a-uv-stick-not-shaken.html

Nice, i heard of UV light within Filters and shit, actually my home filter has an UV light installed. But this is something else, you can give that baby a stir right in your res, before you PH and Nute the water in it.