Beam angle is a very important technical parameter of LED lighting. It is one of the technical parameters that describes the effective area of light illumination and plays an important role in the quality and effect of light. So in the selection and use of LED lights, we should pay attention to the definition and measurement of the beam angle to maximize the lighting effect of the LED lights.
According to the standards of the CIE on Illumination, on the plane where the beam axis is located, the center point passing through the front of the lamp is the axis, and the angle between the area of 50% of the peak central light intensity is called the beam angle, the beam angle reflecting on the illuminated wall is the spot size and light intensity, and the directly below the light source is usually the brightest, the angle formed between the main axis with the strongest light source intensity and the position of 50% luminous intensity on both sides is the so-called The beam angle is as shown in the figure below:
Normally different types of LED lights have different lighting angles. Data in the blank
Below as for your reference.
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Catagory
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LED Downlights(°)
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LED Spot Lights(°)
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Outdoor Flood lights(°)
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Ceiling lights(°)
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Beam Angle
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60/90/120
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15/24/36/45/60
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5/10/25
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110/120/140
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Even the same LED lamp will have different lighting angles. There is no best beam angle, only the right one. Generally speaking, light with a narrow beam angle has a better anti-glare function, but the area illuminated by the light source is relatively small. But it will also form a relatively strong spatial brightness contrast.
The wide beam angle can form uniform lighting for the space because its light is relatively scattered, but it may be much weaker in creating the space atmosphere. Therefore, different beam angles should be selected according to the different spaces and application scenarios customization.
