How to choose the right Beam Angle of COB LED downlight?
بواسطة Amy Topsun lighting
December 1st, 2024
4 مشاهدات
What is the Beam Angle of LED lights?The beam angle of an LED lamp refers to the degree of diffusion of the light emitted by an LED lamp in a specific direction, usually expressed as an angle. The size of the beam angle directly affects the distribution range of the light and the lighting effect.
Different Beam Angles and Applications
Beam Angle (<20°): The light of this type of LED lamp is very concentrated, and it is usually used on occasions that require high brightness and long-distance lighting. For example, stage lighting, spotlights, spotlights, etc., can highlight the lighting target and produce strong light and shadow effects.Beam angle (20°-40°): The light is relatively concentrated but slightly diffused, which is suitable for occasions that require a certain lighting range but maintain a high brightness. b. Suitable for commercial lighting, artwork lighting, etc., it can provide uniform lighting effects within a certain range.Beam angle (40°-60°): The light diffusion range is moderate, suitable for general indoor lighting and decorative lighting. For example, lighting in living rooms, bedrooms, offices, and other places can provide soft and uniform lighting effects.Beam angle (60°-90°): The light diffusion range is wide, suitable for occasions that require large-area lighting. Such as warehouses, factories, gymnasiums, etc., can ensure that the entire space is fully illuminated.Beam angle (90°-120°): The light is very scattered, suitable for areas that require wide lighting. Such as outdoor billboards, street lights, landscape lighting, etc., can ensure that the light can cover a wider area.Beam angle (>120°): The light of this type of LED lamp is almost spherical and is suitable for occasions that require all-round lighting. Such as LED ceiling lamps, panel lights, globe bulbs, corn lights, etc., can ensure that the entire room is evenly illuminated.
How to choose the Beam angle of the COB LED downlight?
1. Optical components that determine the COB LED downlight beam angle
PMMA LensThe lens has strong light control ability, less light loss, high light energy utilization, good lighting effect, can provide uniform light distribution and strong focusing effect, suitable for scenes that require precise light control.ReflectorThe reflector controls light by reflection, which is suitable for basic lighting needs. The reflector is easy to install and has low cost, which is suitable for scenes that do not require complex light control.In terms of light control performance, the PMMA lens controls light by refraction and has a stronger light control ability, while the reflector controls light by reflection, and the beam angle is smaller. In terms of light output effect, the edge of the light spot of the reflector is clear, while the edge of the light spot of the lens is soft
2. Beam Angle of COB LED downlight
Common beam angles are 15 degrees, 24 degrees, 36 degrees, and 60 degrees.
15° beam angle: The central light is relatively strong, the beam is small and concentrated and is generally used for focal lighting, small decorations, small exhibits, etc.
it is rarely used in homes, mainly suitable for commercial lighting, cabinet lighting, museum lighting24° beam angle: The central light is slightly weaker than 15°, and is generally used for key lighting, such as dining tables, coffee tables, decorative plants, crafts, sculptures, etc.
36° beam angle: The central light intensity will be relatively weak, and the light spot will be uniform. It is generally used for wall-washing lighting, such as wall washing, painting, background walls, etc.
60° beam angle: The central light intensity is weaker, the light arc is large, and it is generally used for uniform lighting, such as aisles, kitchens, entrances, etc.
Different beam angles create different spatial atmospheres, so in lighting design, you need to choose the size of the beam angle according to the actual situation.
If the beam angle is too small and the lamps are not arranged properly, it results in the same space being bright and dark, causing visual fatigue.
3. The effect of beam angle illumination is related to the distance from the wall and the illumination distance
The influence of distance from the wall:The closer to the wall, the brighter the light on the wall, and the higher the light arc.The farther from the wall, the darker the light on the wall, and the lower the light arc until it disappears. The influence of illumination distance:The closer the distance, the brighter the light to the illuminated object and the light arc will become smaller until it is completely focused;The farther the distance, the darker the light to the illuminated object, and the light arc will become larger until there is no focus.
By the way, the beam angle of SMD LED downlight is always larger than 90°, it is always used for uniform lighting, so we do not need to confuse this problem.
Conclusion
After understanding the beam angle, choosing the right beam angle becomes simple. As long as the beam angle you choose can match the lighting effect you want, it is the best choice. I hope this article can help you and make your home lighting more layered!
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