Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect.
 
Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Day lighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants. 
 
Indoor lighting is usually accomplished using light fixtures, and is a key part of interior design.
 
Do not discount your lighting in your design as it could have a very dramatic effect on the enhancing or 'enlightening' effects of the overall finishing of a particular setting.

Lighting

 
Lighting is one of the most important design elements in your home, setting the tone for each room. Three different types of interior lighting establish the feel of a space: 
- Ambient lighting fills a room with bright light or a mellow glow.
- Task lighting focuses a beam of light on a work area.
- Accent lighting highlights art or an architectural feature