Liquid-cooled lighting?

Cooling is a key consideration in the design of LED lighting. Heat build-up can shorten the life of LEDs and limit their usefulness, especially in retrofit applications. Switch Lighting, San Jose, Calif., has an innovative solution: rather than the array of fins we see on many LED lamps, they've gone with a liquid-cooled design, which they claim gives the lamps better efficiency.

We found it via Jetson Green