Which elements should we consider more carefully while selecting LED floodlight and spotlight?
Bracket angle
Generally speaking, it is advisable to have a greater beam angle if you need to light a broad region. Instead, use a narrow beam angle if you simply need to light a small area.
However, in real-world scenarios, we also need to be aware of the separation between the light source and the illuminated surface. We have noted that the beam width is inversely related to the installation distance in the section on beam width. The floodlight's irradiation range is directly influenced by the installation height. The beam width (irradiation range) of a ZGSM Zoom series 200W floodlight installed on a tennis court with a pile height of 10 meters is a circle with a diameter of 20 meters. This indicates that there are several lights outside the tennis court, which is barely 10.97 meters wide. Consequently, our lighting plan is a flop. As a result, the beam angle should be chosen based on the intended use. We need Zoom with a 25° or 60° beam angle for this tennis court. Please get in touch with us if you have any questions about picking the beam angle for a tennis court or other sporting area.
Wattage
When explaining the distinction between spotlights and floodlights, we pointed out that spotlights often have lower wattages whereas floodlights typically have higher wattages. Would you choose a spotlight if we needed to light up a stadium right now? You could believe that the spotlight can illuminate the sports field because of its small beam angle. A comparable test was conducted by ZGSM. A 20W spotlight positioned at a height of 10 meters illuminates an area of 5 by 5 meters below it on average with just 50 lux, which is plainly insufficient for stadium illumination. The spotlight's inadequate wattage is the cause. We thus need high-wattage floodlights. For instance, a ZGSM 100W Zoom floodlight with a 25° beam angle has an average illuminance of 200lux (5*5m area underneath the floodlight), whereas a 400W Zoom floodlight has an average illuminance of 800lux, which may satisfy the stadium lighting specifications. However, we believe a 20W spotlight is appropriate for landscape illumination (such as TV backdrop walls or wall lighting).
CRI
Because spotlights are often used to highlight certain exhibit items, architectural details, and landscape elements, it is ideal to utilize CRI80 or higher for spotlights in order to more accurately show the color of the object itself.
However, the majority of applications only need floodlights with a CRI of 70. However, in other cases, high CRI is required for stadium or sports field lighting in order to get a decent visual impression. For instance, we often want a higher CRI on a tennis court field that has a TV broadcast. Verify the lighting on the tennis courts.
Other elements
Along with beam angle, wattage, and CRI, other factors to take into account include luminous efficiency, heat dissipation, waterproofness and dustproofness, flickering problem, CCT, lighting uniformity, and warranty. In our other articles, we'll talk about this in relation to LED floodlights.
Summary
Depending on your demands, you may choose between spotlights and floodlights. Keep in mind that spotlights and floodlights sometimes can't be utilized separately. The pros and drawbacks of using spotlights and floodlights together are better suited to enhancing the lighting impact and enhancing the visual effect. Each component of a lighting project has specific lighting needs. For instance, a gallery's hallways and aisles need consistent, floodlighting to illuminate the area, yet the artwork itself requires sharper lighting to set it out from the backdrop. Therefore, knowing what kind of illumination you require is crucial to your decision. Select the ideal fixture for your application after determining the lighting effects you really want.
