Red Sea have now announced the release of their LED's, the ReefLED 50 and 90.
The prices look good compared to the Hydra HD26's I currently have on my S-650. However, I'm not going to go out and buy them just to replace the current lights. However, I would be interested in them over time, especially if the current lights start to fail at some point. I like the look of the recess in the unit, which it claims reduces light spillage, as this is something She Who Casts No Shadow complains about.
I understand that it also retro fits into the current light assembly on the S Series tanks.
With the Red Sea Skimmers getting some mixed reviews, it'll be interesting to see the reviews for these lights.