Meet the Haiku Light: a smart light with Amazon Echo support that lets you control it using your voice or iOS/Android device. With SenseME technology, you can group your lights and control them simultaneously. The Haiku light can detect your presence to turn on automatically. It also dims in response to ambient light.
These lights can be put on a schedule to conserve energy. You can shift their color temperature to fit your needs. Costs under $200 at this time.