In any workspace, particularly desk workspace, lighting is always an issue. From the standard lamp at your home office to the fluorescent overhead lighting in your work room, having the correct light fixtures can have a huge effect in your productivity and comfort.
In a home workspace, just like in most home based workers, things are simple. Since rooms normally have one light, lighting costs are not much to worry too much about. At a corporate office, however, things are quite different. It's good to know that there are better options.