Not a very long time ago when the Chinese company Shanghai Key Industrial introduces us with their very own interpretation of led lightning for aquarium application. Few reefers even bothered to have a look. Most, if not all ignored the potential. Among those who had a chance to fiddle with these light noted that the fixture comes with basic functionality. One to switch the blue lights and one switch for the white.
That all will change will the introduction of their 2011 models. Not only that it is fully controllable, they have as well slapped a strip of RGB LED to simulate sunrise and sunset.
here is a simulation:
