They can rotate 90 degrees from completely
flat to where they are parallel to the light as it come out of the
fixture. The guys at the booth made it very
clear that "they are made to be
edge lit". I'm not sure what that means exactly, but they did read nicely even when completely "open". The
fixture itself is a spot type
unit with
gobo wheels and things like that. Can also do split colors and breakups with just the
LED engine which I thought was pretty darn neat. Not sure if there would be an actual efficiency or thermal benefit to doing it this way or if it's just a unique feature for the sake of being unique.