Philips Hue combines brilliant LED light with intuitive technology. Then puts it in the palm of your hand.Together, the bulbs, the bridge and the app will change the way you use light. Forever. Experiment with shades of white, from invigorating blue/white to cozy yellow/white. Or play with all the colors in the spectrum.

Source: Meet hue | The system

Basically it comes in all shapes and sizes and can turn your house into a nightclub. You run it from your mobile or you can automate the on and off through a website. It plugs into your normal fittings and you have to buy a controller (bridge) that can handle 50 bulbs.