What is RGB Led?
RGB LED lights are made by mixing red, green and blue. The three primary colors are combined with bai for imaging. In addition, there are blue LEDs with yellow phosphors, and ultraviolet LEDs with RGB phosphors. The colors of some LED backlight panels are very clear and vivid, even to the level of high-definition TVs. This situation is exactly the characteristic of RGB, which advertises the characteristics of red as red, green as green, and blue as blue. In terms of color mixing, it has more diverse characteristics.
RGB is designed based on the principle of color luminescence. Popularly speaking, its color mixing method is like three lights of red, green and blue. When their lights overlap each other, the colors are mixed, but the brightness is equal to The sum of the brightness of the two, the more mixed the higher the brightness, that is, additive mixing.
For the superposition of the red, green and blue lights, the brightest superposition area of the three colors in the center is white. The characteristic of additive mixing: the more superimposed, the brighter.
Each of the three color channels of red, green and blue is divided into 256 levels of brightness. At 0, the “light” is the weakest-it is turned off, and at 255, the “light” is the brightest. When the three-color gray values are the same, the gray tones with different gray values are produced, that is, when the three-color gray is 0, it is the darkest black tone; when the three-color gray is 255, it is the brightest white tone .
RGB colors are called additive colors because you can produce white by adding R, G, and B together (that is, all light is reflected back to the eye). Additive colors are used for illuminating lights, televisions, and computer monitors. For example, displays produce colors by emitting light from red, green, and blue phosphors. Most of the visible spectrum can be expressed as a mixture of red, green, and blue (RGB) light in different proportions and intensities. If these colors overlap, cyan, magenta, and yellow are produced.
RGB lights are used in a wide range of applications, such as building exterior wall decoration lighting, commercial advertising sign lighting, suspension bridges, parks, weddings and bars. Our color-changing light supports USB DMX 512 interface and can emit 16 million colors. Through the dedicated lighting control software, we can manually or use the automatic programming function in the software to change the color of the light to achieve the best results. Our RGB LED flood light has a life span of 80,000 hours, which is equivalent to 27 years (calculated at 8 hours per day). In addition, our products also have IP66 waterproof function, which can withstand severe weather, such as heavy rain. Fengrui’s RGB color-changing light fixture series also supports wireless control. The color of the light can be controlled through mobile phone or electric WiFi to reduce the use of signal transmission lines. Our color changing lighting system is suitable for beginners or professional users. It does not require professional knowledge to control our lamps, just a few keystrokes can change the light color perfectly.
Application of RGB LED wall washer and color-changing marquee
The colorful exterior lighting of buildings brings life to the city. Let’s learn about the most common applications together.
How to add color to the exterior walls of buildings?
The RGB color-changing wall washer is most commonly used on the exterior walls of buildings because it can provide a wide range of bright lighting effects. Our RGB lights have power options of 60 to 2000W to cope with building exterior walls of different heights and areas. Based on our color-changing lighting system uses LED as the light source, so it is more energy-efficient than traditional old-style lamps, reducing your electricity bill by up to 75%.
- How to use RGB wall washer?
Generally speaking, if the building needs a large area of illumination, we will install the lamps on the bracket 1.5 to 2 meters away from the outer wall. In terms of lighting parameters, we will use large-angle RGB lights, such as 60 degrees, 90 degrees or 120 degrees. The larger the angle, the wider the range of illumination.
In terms of color control, we will first connect each RGB LED light in series, and then connect the first light to the computer using a USB DMX 512 cable. Even if it is connected in series, each color-changing lamp can emit different colors at the same time, because the software will semi-automatically encode each independent RGB lamp.
In terms of color change, there are more than 50 preset modes in the software, such as marquee, gradient rainbow, countdown and so on. Professional lighting control effects can be achieved by using the built-in mode. More importantly, our entire RGB LED color-changing lighting system is very easy to use, and the lights can be adjusted to different scene modes without the need for professionals to be present.
- Unique wedding decoration and colorful color changing lighting arrangement (music synchronization)
Fengrui Optoelectronics’ RGB color-changing lighting system can also be used for wedding venue layout. If the lighting design of the fruit restaurant is not perfect, you can consider using our temporary RGB lights. Depending on your budget, our engineers can tailor the most ideal lighting solution for you.
In addition to general color-changing lighting effects, our RGB wedding lights support light and music synchronization. The software will receive the music from the venue and then make the lamps emit corresponding colored lights. The principle is to detect the frequency of music and then match it with the wavelength of different light. We can also adjust the sensitivity to achieve the best results. The following is our supporting video.
- Color-changing advertising signs that attract passersby
Our RGB lighting can also be applied to advertising signs. Our RGB lights have a maximum power of 2000 watts, which is enough to illuminate billboards larger than a standard basketball court.
- Color-changing lighting systems for hotels and casinos (color-changing fountains and waterfall lights)
In order to attract residents, many hotels and casino facilities have also installed color-changing floodlights. For example, the underwater RGB lights of a waterfall show. Our RGB lights also support underwater use, because they have IP66 waterproof function, suitable for long-term immersion in water.
- Park landscape lighting
The soft lighting can decorate the various attractions of the park. Our RGB lights are dimmable from 10 to 100%.
- Use RGB color-changing wall washer to beautify viaducts and suspension bridges
During the New Year, many countries also choose to count down the fireworks on the suspension bridge. The colorful background lights make the fireworks more eye-catching. Fengrui’s RGB LED floodlights are lightweight, making it easier to install the lamps on suspension bridges and cables, and are safer to use.
Application of RGB LED in display
Most of the current displays adopt the RGB color standard,
On the display, colors are generated by hitting the red, green, and blue light-emitting poles of the screen with an electron gun. Current computers can generally display 32-bit colors, with more than 10 million colors.
All the colors on the computer screen are composed of the red, green and blue colors mixed in different proportions. A group of red, green and blue is the smallest display unit. Any color on the screen can be recorded and expressed by a set of RGB values.
In computers, the so-called “how much” of RGB refers to brightness, and it is represented by integers. Normally, RGB has 256 levels of brightness, which are represented by numbers from 0, 1, 2… until 255. Note that although the highest number is 255, 0 is also one of the numbers, so there are 256 levels in total. It is like 11 years from 2000 to 2010.
According to calculations, 256-level RGB colors can combine a total of about 16.78 million colors, that is, 256×256×256=16777216. Often referred to as 16 million colors or tens of millions of colors. Also called 24-bit color (2 to the 24th power).
In the LED display field, three-in-one dot-array full-color technology is used, that is, full-color pixels are composed of RGB three-color chips in a light-emitting unit. As this technology continues to mature, led display technology will bring people a richer and more true color experience.