The Lucy Light is a clever product from Italian startup Solenica. Its a solar powered intelligent mirror that tracks the sun and points it in whatever direction you tell it.
A lot of the cleverness is in the algorithm used to accurately track the sun and aim the mirror at just the right angle to keep it shining in a predetermined direction. This is far more complex than, say, tracking solar panels that simply stay pointed directly at the sun.
The Lucy Light is currently available for preorder.