Views: 0 Author: Zayn Publish Time: 2021-11-15 Origin: https://www.suntechleds.com/
When looking for LED outdoor products, we often come across two different products, LED floodlights and LED spotlights. Due to the similar appearance of the two products, it is easy to get confused. Let's take a closer look at the difference between floodlights and spotlights.
LED spotlights are also known as projection lights. They are generally used to decorate and illuminate buildings and to illuminate commercial spaces, mainly for decoration. The shape of the lamp can be round or square, as shown in the picture below. Because floodlights and spotlights usually have high power and require heat dissipation treatment, the external light of lamps is different from that of traditional floodlights.
An LED floodlight is a point light source that illuminates the surroundings with uniform light. In application scenarios, it can be represented by a regular octahedron icon, and its lighting range can be adjusted arbitrarily. Floodlight is a light source widely used in renderings. Standard floodlights can illuminate the entire scene. You can apply multiple floodlights to the scene for better results.
Floodlights could be placed outside the range of the camera or inside objects. The effect of long-distance illumination with floodlights of different colors is more common. Illuminating objects with these LED floodlights creates a variety of shadows. This light has other auxiliary uses as well. For example, placing a floodlight near an object will create a strong light on the surface of the object.
But pay attention in actual use, if the floodlight is used too much, the effect may not be as expected. Therefore, when making renderings, pay attention to the influence of lighting parameters and layout on the light perception of the entire rendering scene, accumulate more experience, and master lighting matching skills.
Before understanding the difference between floodlights and spotlights, you must know what a beam pattern is. The beam angle or pattern is a measure of the angle formed between the brightest point (center) of the light cone and the point on either side of the center where the light intensity is 50%.
In the picture, we can clearly see that a larger beam angle means that the light spreads more widely in an area, similarly, a smaller beam angle means that the light spreads more narrowly.
Small beams are often referred to as spot beams, while larger angles (often over 90 degrees) are considered flood beams. Luminaires may not always be specifically labeled as spotlights or floodlights, but their beam patterns define them as spotlights or floodlights.
Spotlights: LED spotlights will project a beam of light that exits on the narrower side (45 degrees or less). This beam spread is concentrated in a more specific area and is easier to point and control.
Floodlights: LED bulbs in this category produce large beams that cast 50 to 120 degrees of light. It can illuminate larger spaces with the same wattage and lumen output as a spotlight.
Many LED spotlights on the market use 1W LED lamp beads, and each LED element will have a high-efficiency lens made of PMMA. The main function of this lens is to redistribute the light emitted by the LED, which is two secondary optical elements. Some companies use 3W or higher power LEDs because of their better cooling technology. These high power spotlights are more suitable for large occasions and large architectural surfaces.
LED spotlights can be controlled via a built-in microchip. In small engineering applications, dynamic effects such as gradation, jumping, flickering, and color alternation can be achieved through microchips, without the need for a controller; spotlights can be controlled by DMX controller to achieve chasing, scanning and other effects.
When the current is relatively small, the temperature rise caused by the heat generated by the LED floodlight is not obvious. If the current is large and the external ambient temperature is high, the dominant wavelength of the LED floodlight will be red-shifted, the brightness of the lamp will decrease, and the uniformity and consistency of the light output will decrease. Especially in dot matrix and large display screens, the temperature rise has a greater impact on the stability of LED floodlights. Therefore, it is very important to deal with the heat dissipation problem of LED floodlights.
LED spotlights are used when you want to highlight a specific point or detail, such as artwork in a museum, features in a landscape, or objects on display.
If your project needs to illuminate a large space with evenly distributed light, LED floodlights are a good choice. Floodlights are mainly used in parking lots, warehouses, driveways and other places.
The main applications of LED spotlights are: building exterior wall lighting, architectural lighting, indoor local lighting, green landscape lighting, billboard lighting, bars and other places.
Floodlights and spotlights can also be used in combination, and they are often combined on work vehicles as beacons, locators and tracking tools for various night jobs. For example, floodlights can be activated to help you drive in fog, while spotlights can also be turned on to allow you to see further and discover obstacle distance.
While it's helpful to have a general idea of what settings you can use with spotlights or floodlights, being able to measure the coverage of each light in feet can make your lighting projects go much more smoothly.
Check out the formula below:
Distance to Light×Beam Angle×0.018 = Beam Width (ft)
For example, if you want to cover a 20-foot area with 90-degree floodlights:
20×90×0.018 = 32.4(ft)
Understand the difference between outdoor LED floodlights and LED spotlights, and master this formula, I believe you can easily buy the LED floodlights or spotlights you need.
Whether you are looking for an LED light supplier or need a custom light, Suntech LED can help. You are welcome to contact us anytime!
Edited by Zayn