Lighting is the use of light to achieve a practical or aesthetic effect. Lighting includes the use of both artificial light sources, like lamps and light fixtures, and natural lighting by capturing daylight. Daylighting is often 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. Good lighting describes the way that rooms in homes, offices and public facilities are lit. Lighting design as it relates to the built environment is often accomplished by professionals with a background in interior design, architecture, electrical engineering, or interior design. Lighting can also be an intrinsic component of landscape projects. Having a properly designed lighting system adds deepness, texture, and turn a plain existing space into a stunning night environment. Professionals must take into consideration the direction and color of light for specific effects. Proper lighting can improve safety when applied strategically. Light placed beside stairs and below banisters, or around sharp corners, can make them easier to navigate in the dark. Properly placed colors and lighting can reduce vision impairments in senior citizens and people with reduced vision. Lighting is a crucial aspect in any interior design project. Without the right light, accenting features in the home are hidden and rooms appear dull and ordinary. With the right lighting plan, spaciousness, accenting and mood can be established. Until LEDs became widely available, most conventional light fixtures were very inefficient, overly hot and expensive to operate. The evolution of LED lights has revolutionized the lighting industry.