WebLuminaire. Definition: A complete lighting unit consisting of a light source with a means of distribution (reflector and/or refractor), lamp positioning (socket), lamp protection (housing) and a provision for power connection. WebMar 18, 2016 · Commonly, however, these luminaires are broken into two types: direct/indirect, a luminaire that emits more downlight than uplight, and indirect/direct, which emits more uplight than downlight. The downlight component provides efficient task lighting with modeling definition, while the uplight component provides diffuse ambient …

NEC Article 410 — Luminaires, Lampholders and Lamps

WebJul 27, 2024 · There are six different types; Direct lighting, 90% to 100% downlight, light falls from the luminaires on the ceiling directly onto the working place, anti-glare is important, the ceiling may look dark (cave effect), high energy-efficiency, downlights are samples for direct lighting. General diffuse lighting, 40% to 60% downlight, 60% to 40% uplight, the light … WebA luminaire is defined in Article 100 as “a complete lighting unit consisting of a lamp or lamps together with the parts designed to distribute the light, to position and protect the … does shrimp count as meat

Direct lighting Definition & Meaning - Merriam-Webster

WebDefinition & Use of Luminaires. A -common and long-established example of a luminaire would be a fluorescent lighting fixture mounted directly to … WebLuminary definition, a celestial body, such as the sun or moon. See more. WebThe term full cutoff has and is being used to describe luminaires that have no direct uplight (no light emitted above horizontal). However, in addition to that limitation, the Illuminating Engineering Society of North America (IESNA) definition also requires luminaires to comply with the glare requirement limiting intensity of light from the luminaire in the … does shrimp count as fish