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Technical environment

Technical environment

Global standard 220V-240V/50Hz-60Hz
Standard for USA/Canada 120V/60Hz, 277V/60Hz
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Our contents are shown to you in English. Product data is displayed for a technical region using USA/Canada 120V/60Hz, 277V/50Hz-60Hz.

Directional lighting: focused light as part of direct lighting

Directional lighting in the exhibition.

Directional light is emitted from point-shaped light sources and belongs to the classification direct lighting. One example from nature is the sun. In contrast to indirect, often diffuse light, the light source is usually directed directly at the target surface to be illuminated. A common form of directional or focused light is accent lighting, e.g. via LED spotlights.

Overview of the topic directional lighting

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What is directional light?

Directional light is a type of direct lighting that is concentrated on a narrow area. The illuminated area thus stands out from its surroundings due to strong contrast and the rest of the surroundings remains darker. Directional light can be used in a focused way as accent lighting or in a planar way as general lighting.
Direct, directional lighting as horizontal general lighting.

In a lighting situation, direct, directional lighting can also provide uniform general lighting on the horizontal plane. The special feature of this lighting: the floor is illuminated while the ceiling remains dark, and beams of light (scallops) are seen on the walls. The height of the light beam on the wall depends on the respective light distribution.

For what is directional lighting suitable?

Directional lighting can also be used in accent lighting. With the targeted spotlighting of objects, e.g. in galleries and museums or with architectural features, specific areas or elements can be highlighted. This contributes to a hierarchy of perception. Directional light causes strong shadows due to pronounced modelling.
Office space with directional lighting.

General lighting in the office that relies primarily on indirect lighting (diffuse light), supplemented by directional light in the area of workstations, relaxation areas and meeting zones.

Directional lighting is suitable in various situations and areas. Interiors that require focused lighting can benefit from directional lighting. The classic application for directional light is accent lighting in exhibitions, but directional light is also used in offices. For example, when high brightness and targeted light are needed for certain tasks.

Directional lighting on an artwork, illuminated from two directions.

The angle of incidence and number of light sources is indicated by the shadows with directional lighting.

Directional light opens up a wide range of options for lighting design: focused light not only creates exciting effects such as shadows and reflections, but the choice of beam angle and beam direction also enable the influencing of direction of gaze and attention. In contrast to diffuse lighting, which affects the entire room from the light source, the effect of focused light depends on the position of the luminaire.

Good to know:

When planning directional lighting components, the expectations of light direction and light color resulting from the elementary experience of daylight should be taken into account. Thus, the directed light comes from above or laterally, but never from below. The color of sunlight is significantly warmer than that of diffuse sky light. Therefore, lighting in which directional light comes obliquely from above and has a warmer light color than diffuse general lighting is perceived as natural. The use of deviating light directions and color temperature combinations is possible, but leads to particularly striking effects.

Which luminaires emit directional light?

LED spotlights (e.g. for track) and downlights are commonly used LED luminaires for interiors that produce directional light. These types of luminaires are designed to emit light in a specific direction, allowing the targeted illumination of specific areas. LED spotlights and track luminaires have adjustable heads that can be panned or tilted to direct the light beam. In this way precise lighting effects can be achieved.
Directional lighting with pendant luminaires.

Pendant luminaires as suspended luminaires are often used to draw the gaze and attention to certain surfaces, such as reception desks and tables.
In addition, some LED wall luminaires and wall-mounted luminaires can also produce directional light. These luminaires are designed to direct light either upwards or downwards, creating a focused and accentuated lighting effect.

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Further topics on lighting design

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