The driftwood gives off tannins that yellow/darken the water. Most of the pics I've posted in this thread have been taken after large water change. These current pics are more consistant with the normal appearance of the tank, though it looks better in real life. COmpared to the old shop lights, it's noticebly brighter.
Plus, I have two aquasun bulbs flush with the left side of the tank making that side pretty bright, while the middle bulb is flush with the right side of the tank, and is an actinic (blue), frequently used on reef tanks to provide certain wavelengths to corals and bring out colors in corals/fish. It provides considerably less light (note the darker right side of the tank), and doesn't do anything special in bringing out colors in the fish. It will soon be replaced.
I made serious effort to find one of these when I first saw two pics several years ago. Honestly? I now think they are mythical, the photos "shopped".