LIGHTING BEAM ANGLES
AND HOW THEY AFFECT LIGHT DISTRIBUTION
Beam Angles In Lighting
The beam angle describes how light is emitted from a specific light fixture. Measured in degrees, it indicates how narrow or wide the light beam is from a source. A narrower beam creates focused lighting, while a wider beam angle spreads light over a larger area.
In technical terms, it is the angle between the two directions on either side of the central axis of the beam where the light’s intensity is 50% of its peak.
How does Beam Angle affect Light Distribution?
Focused vs Wide Light Coverage
Narrow angles provide intense, focused light. Ideal for highlighting art, architectural details, or merchandise. Wide angles create soft, even lighting making them ideal for living rooms, offices, and bedrooms.
Shadows and Visual Contrast
In technical terms, it is the angle between the two directions on either side of the central axis of the beam where the light’s intensity is 50% of its peak. The use of spotlights create high contrast and sharp shadows, great for drama or visual impact.
Using floodlighting minimises shadows. This makes them suitable for functional spaces where clearer lighting is required.
Perceived Brightnes
A narrow beam angle applies more light onto a small area, making it appear brighter even if the lumen output is the same. A wide beam spreads the light, resulting in a softer, more diffused effect.
The right beam angle for your space.
Not sure which beam angle is the most suitable for your application? Use these general recommendations to choose the most effective beam angle for your lighting goals and to get the right level of illumination.
| Application | Recommended Beam Angle |
|---|---|
| Artwork, accents | 10°–25° |
| Kitchen tasks, reading | 25°–40° |
| General room lighting | 60°–120° |
| Hallways or corridors | 30°–60° |
Our 3 Quick Tips
Use narrow beams for high ceilings to maintain intensity at distance.
Use wide beams for low ceilings to reduce glare and ensure even coverage.
Use a beam angle calculator for advanced planning in large or layered spaces.
Angle v Width: What's the difference?
While the angle refers to the degree of light spread, the beam width is the physical width of the lighted area on a surface.
The beam width depends on:
The angle of the beam
The distance from the light source to the target
We recommend the use of an online lighting calculator or simulation tools for more accuracy in lighting design projects.
Why the Beam Angle matters in Lighting Design
Beam angle is just as important as light output (lumens), power consumption (wattage), and colour temperature (Kelvin). Achieving the right beam angle ensures the right brightness, atmosphere and efficiency for the required space. In turn, the correct angle can prevent over or under lighting, the appearance of harsh shadows and glare.
Choosing the correct solution can transform your room from flat to functional, or dramatic to cosy, depending on your intent. When upgrading to LED lighting or planning a new layout, be sure to consider beam angles for the intended result.
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