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.