How to choose the right Beam Angle for the COB LED downlight?
By Amy Topsun lighting
Different LED lamps use different optical elements and ways of controlling light divergence during design and production to meet the lighting needs of different occasions. At the same time, different beam angles will also produce different visual effects and lighting feelings. For example, soft, wide-angle light can create a comfortable environment, while sharp, narrow-angle light can highlight specific targets or details. Therefore, the beam angle is also a very important parameter when choosing LED lamps. Choosing the right beam angle according to the usage scenario can ensure the best lighting effect.
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 beam angle's size directly affects the light's distribution range 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, downlights, 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. It is suitable for commercial lighting, artwork lighting, etc., and can provide uniform lighting effects within a certain range.
Beam angle (40°-60°): The light diffusion range is moderate, suitable for general indoor 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 the entire space is fully illuminated.
Beam angle (90°-120°): The light is very scattered, suitable for areas that require wide lighting. It is suitable for outdoor billboards, street lights, landscape lighting, etc., and can ensure that the light covers a wider area.
Beam angle (>120°): This type of LED lamp's light is almost spherical, suitable for occasions that require all-around lighting. LED ceiling lamps, panel lights, globe bulbs, corn lights, etc., can ensure that the entire room is evenly illuminated.
How to choose the right beam angle for the COB LED downlight?
1. Optical components that determine the COB LED downlight beam angle
PMMA Lens
The 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.
Reflector
The reflector controls light by reflection, suitable for basic lighting needs. It is easy to install and low-cost, suitable for scenes that do not require complex light control.
- Regarding light control performance, the PMMA lens controls light by refraction and has a stronger ability to control light. In contrast, 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 COB LED Downlight beam angles are 15 degrees, 24 degrees, 36 degrees, and 60 degrees.
15° beam angle: The central light is relatively strong, but the beam is small and concentrated. It is generally used for focal lighting, small decorations, small exhibits, etc. It is rarely used in homes and is mainly suitable for commercial, cabinet, and museum lighting.
24° 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, and sculptures.
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.
The impact of different beam angles on space:
Different beam angles create different spatial atmospheres, so in lighting design, you must choose the right beam angle according to the situation. If the beam angle is too small and the lamps are not arranged properly, the same space will be bright and dark at the same time, causing visual fatigue.
3. Two factors also affect beam angle illumination
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 is 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 one for the COB LED downlight becomes simple. As long as the beam angle matches the lighting effect you want, it is the best choice. I hope this article can help you make your home lighting more layered!
