Knowledge What is general lighting?


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General lighting is designed to provide a substantial uniform level of illuminance throughout an area. This level of illumination all parts of a room can be safely navigated and establishes the overall impression an occupant has of the space. In a layered lighting scheme, general lighting is often referred to as ambient lighting upon which other layers of light (accent, task, decorative) build. In many applications, general lighting serves as the primary source of lighting and provides task illuminance as well. Ambient lighting does not illuminate specific tasks but rather provides light that fills a space, reduces shadows and creates a sense of openness and comfort. General lighting can be accomplished with direct lighting, indirect lighting, and direct/indirect lighting. Direct lighting travels uninterrupted from the luminaire to the work plane. Indirect lighting reflects off the ceiling (or wall) before reaching the work plane. Direct/indirect lighting combines both downward and upward light distributions to fill spaces with a desired level of overall light. General lighting can be provided by a variety of luminaires, which include chandeliers, pendants, troffers, ceiling lights, and wall-mounted sconces.

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