Not my project, not my idea, just contributed with some electronics knowledge. As it is a nice project worth sharing here, I add it as "complete" project. Follow the links below to see more...
http://vimeo.com/101652211
http://michaelbais.ch/portfolio/hardware/led_lighting/lamp
http://michaelbais.ch/portfolio/hardware/led_lighting/control_unit
http://vimeo.com/michaelbaisch