It does not matter if you work in a home office or if you work in a cubicle, the character and quality of lighting will help to increase or decrease your productivity at the workplace. If the lighting is poor it has a negative impact on your energy, weakening your morale, producing eye strain and headaches and finally impairing your ability to work efficiently.
If you work in a room which has the lesser amount of natural light, then while illuminating the workplace artificial light has a more important role to play. Only the existing ambient lighting in the home or office is not always sufficient for functional light in the office, here it may also be important to add additional sources of light.