Smart Bulbs - more than just an LED.

“A smart bulb is an internet-capable LED light bulb that allows lighting to be customized, scheduled and controlled remotely. For example, when you are vacationing this summer, you can program your lights so that you still come home to a lit house without wasting energy while you are gone.”

http://www.whatissmartgrid.org/featured-article/five-tips-for-making-your-house-an-energy-saving-smart-home