NXP’s GreenChip smart lighting solution offers a way to make internet-enabled, energy-efficient lighting networks a reality for businesses and consumers. Using the new technology, every light bulb can have its own unique IP address, and users can monitor, manage and control them all from any internet-enabled device. Lights can be turned on and off individually, for example, from any smartphone, tablet, PC or TV. Dozens or even hundreds of appliances can be connected through a wireless network designed for maximum energy savings, in fact, communicating information about their environment and consumption levels as well as any problems.
http://www.jennic.com/products/protocol_stacks/jennet-ip
http://www.fastcoexist.com/1678044/wi-fi-connected-lightbulbs-coming-to-smart-homes-in-2012