Base Range Of Light Height

  •     The term "beam angle" has many interpretations: wide-angle, narrow-angle, spotlight, floodlight, basic lighting, accent lighting, decorative lighting, etc.

        Let's start by talking about angle and how it applies to lighting. Beam angles are typically expressed as ~15° to ~160°. Some bulbs may be angled below 15°, just as some bulbs may be angled more than 160°. A typical household light bulb has a beam angle of 360°, which means it can provide light in a wide area from all directions, but with less brightness. While it covers a wide area, outside the home, it's less effective.

        A key consideration when talking about beam angle should be the height at which the light is mounted. The general belief is that the higher the lamp is mounted, the narrower the beam angle should be. A narrower beam extends further into the area, while a wider beam angle means the light is more spread out over a larger area, shortening its length. To compensate for the shorter distance, simply increase the number of lamps. Unless you're designing for a horror movie, your beams should always overlap - so there are no dark areas between lights.

        Next, you need to decide on the vibe you want to set. Three common terms are basic lighting, accent lighting, and decorative lighting.

    Basic lighting (wider beam) refers to the general lighting of a space. Think of a bedroom or the dining room of a fast-food restaurant. Everything is evenly lit, nothing stands out. Nearly every inch of space has the same level of consistent brightness, making it easy to see the entire space.

        Accent lighting (a beam of medium width) is used to highlight specific areas. Think of the family dining table or the office. Some areas are brighter than others. When inside these spaces, your eyes are drawn to the illuminated area, minimizing distractions outside the illuminated area.

        Decorative or task-oriented lighting (narrow beams) can be considered accent lighting but is more focused on individual objects rather than areas. An art gallery or museum is a great example of the effective use of decorative lighting in a space.

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