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. Daylighting (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. Lighting can also be an intrinsic component of landscape projects. 

Forms of lighting include alcove lighting, which like most other uplighting is indirect. This is often done with fluorescent lighting (first available at the 1939 World's Fair) or rope light, occasionally with neon lighting, and recently with LED strip lighting. It is a form of backlighting. QUESTIONS:

Q1:
1. How is indoor lighting generally achieved?
2. What is generally done to achieve indoor lighting?
3. What's the general method for acquiring light indoors?
Q2:
1. Are light fixtures only functional?
2. Are light fixtures nothing but functional?
3. Do light fixtures serve a solely functional purpose?
Q3:
1. What part do light fixtures play in a room?
2. What do light fixtures do for a room?
3. How do light fixtures change up a room?
Q4:
1. Can light fixtures be used outdoors?
2. Is it possible to place a light fixture outdoors?
3. Can light fixtures be used outside?
