Lighting is the process of providing light in an area to add elegance, light up a dark space, or to create a desired atmosphere, such as the ambiance in a restaurant or club. Some of the most common lighting types include artificial lighting, natural lighting, and mixed lighting. Artificial lighting typically refers to electric light. This refers to a variety of sources including, incandescent lightbulbs, fluorescent lightbulbs, high intensity discharge lamps (HID), LED lamps, and much more. Artificial lighting is used in interior areas and is typically removed from the natural environment. Artificial lighting is used to provide a variety of effects, such as to highlight a feature, to provide a desired atmosphere, or to meet a safety requirement. Natural lighting refers to sunlight that is used to either supplement or replace electric light. Natural lighting is free and can be used in the home or outside. Natural lighting can add a beautiful ambiance to a room, however, it can also be a distraction if used improperly. Mixed lighting refers to any combination of both artificial and natural lighting used to achieve a desired effect. Mixed lighting is often used to add more variation to the lighting around a room. For example, if a person wants a warming effect in their bedroom, they may use a combination of artificial and natural lighting. Lighting can drastically change the mood and atmosphere of a room. By understanding the different types of light available, it can be easier to decide on which combination will best suit a particular environment. Depending on the desired effect, artificial, natural, or mixed lighting can each provide unique benefits.