Finding the proper light for a particular task can be tough. If you're working at a desk, doing finely detailed work, for example, you might want something different than if you're trying to read in a darkened home theater.
This can make choosing a light fixture more difficult than you might think. Do you go for something ultra bright, that casts a big splash of light on the surface? Do you want something more subtle, and more focused? Or do you try to find a combination of the above.