On Tue, 08 Jan 2013 21:36:04 +0000, Graham. wrote:

I saw these in a new Sainsbury's store.

http://www.flickr.com/photos/g3zvt/8...ream/lightbox/

Are they LED arrays? I'm not sure. Whatever they are they do the job
well.

Presumably the bit we can see is narrow and just hangs down? Like edge
illuminated emergency exit signs.

--
Cheers
Dave.