This is how the Philips Hue system works. The bulbs are controlled by a wireless bridge that's connected to your wireless router. Using an app on your phone or tablet or by logging into the Hue site from your laptop, you can control the colours, patterns and brightness of the lights
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Philips Hue WiFi light bulbs
Price: $279 RRP
Bottom line: More than a gimmick, this lighting system was useful and I was able to create lighting to suit my mood. It's easy to use and I had no problems setting it up, though some people have had problems with the website interface. At $279 it's possibly $100 too expensive for what it is. I also had the lights in my ceiling fittings, but I think they'd be better as lamp lights around a room.