Yes I use them. They come in various colors including a red laser module. I
built a slate cave for my cichlids which uses the green and blue LED's. It
looks very nice at night.
-Marc
"Andre D" <andre.TakeThisOut@testing.com> wrote in message
news:3F09180D.40409@testing.com...
> Does anyone use these in their tank for colourful displays at night when
the main lights turn off?
> >> Stay informed about: underwater small coloured spotlights