LEDs have replaced incandescent bulbs in many applications, but despite their efficiency they have the same problem of heat production at high output. Creative solutions are necessary to employ LEDs for bright lighting situations. Manufacturers use heat sinks to dissipate the heat of high wattage, however the size of the heat sink makes the LEDs cumbersome. Lamina Ceramics has a solution with a heat sink made up of layers of metal and ceramic which numerous LEDs can be attached to. Lumileds Lighting has combined LEDs of improved thermal efficiency with a metallic heat sink. Both companies hope to offer LED arrays for high illumination applications. (source: NY Times article)