SMD LED lamp has a long life
 
SMD LED lamp beads manufacturers are generally marked as more than 100,000 hours, the actual should also pay attention to the brightness of the LED lamp beads decay cycle, such as most of the UR red tube used for car taillights after a dozen to dozens of hours, The brightness is only half the original. The brightness decay period has a lot to do with the material process of LED production. Generally, the four-element LED with slower brightness attenuation should be used when the economic conditions permit.
 
Patch LED lamp color, white balance:
 
White is a mixture of red, green, and blue in brightness ratios. When the light's green brightness is 69%, the red's brightness is 21%, and the blue's brightness is 10%, the human eye feels pure white after mixing. . However, the RGB color coordinates of the red, green, and blue colors of the LED cannot reach the full-chromatographic effect due to the process and other reasons, while the control of the primary colors includes the brightness of the biased primary colors to obtain white light, which is called color matching.
 
Before color matching for full-color LEDs, in order to achieve the best brightness and the lowest cost, it should try to choose LED devices with three primary colors emitting light with a ratio of roughly 3:6:1.
 
The white balance requires that the three primary colors are still pure white synthesized at the same gray level.
 
SMD LED lamp beads, basic color:
 
SMD LED lamp beads refers to the basic colors that can be synthesized in various colors. The primary colors in the color light are red, green, and blue. The following figure shows the spectrum table. The three peaks in the table are the ideal primary wavelengths. If the primary colors are deviated, the area where the color can be synthesized will be reduced, and the triangles in the spectrum table will be reduced. From the visual point of view, the color will not only be biased, but also will be less rich.
 
The red, green, and blue light emitted by SMD LED lamp beads are divided into purple, pure red, orange, orange, orange, yellow, yellow, green, pure green, green, blue-green, pure blue, and blue, according to their different wavelength characteristics. Violet, orange red, yellow-green, blue-purple, pure red, pure green, pure blue are much cheaper. Green is the most important of the three primary colors, because green occupies 69% of the white brightness and is in the center of the color horizontal row list. Therefore, in weighing the relationship between color purity and price, green is the object of consideration.