Views:0 Author:Site Editor Publish Time: 2021-07-13 Origin:Site
Recently， One of our customers asked us to customize CRI>90 Strips. When he received the sample, he compared our CRI>80 band with CRI>90 band, and then he changed his mind and chose CRI>80 band.
Do you know what is the reason？ And what is the relationship between CRI and Lumen? Will CRI>90 be more suitable for LED strip applications? Now we are sharing our basic knowledge of LED strips with you.
CRI is the color rendering index, also known as RA. It is the degree to which the light color of an object is reduced. It can also be said to be compared with the sunlight at noon. The higher the CRI, the closer the color is to sunlight. In other words, the objects we see under the light are more real. CRI is an important parameter in the development of led lighting. The highest CRI is 100 and the lowest is 0. In the beginning, the CRI of the LED was very low. No more than 60, LED CRI now ranges from 70,80 to 90.
For the cost, the higher the CRI, the higher the price. For most applications, CRI>80 is sufficient. For some very high requirements, we can use CRI>90 and CRI>95. Now more and more projects use CRI> 80 LED strip lights. Suntech provides LED strips with CRI>80 and CRI>90.
The color rendering index of sunlight is 100, but as a characteristic of the light source, the illuminating light determines the degree of restoration of the object's color. The color rendering index of sunlight is 100, but as an LED light source, the CRI of the lighting lamp determines the degree of color reduction of the object.
We all know that the three primary colors are red, green, and blue light, and red and green are mixed to get yellow. So blue light and yellow light mix to form white light. The mainstream of the LED base is that white light is made of a mixture of blue chip solution and yellow phosphor, so the LED spectrum is mainly blue and yellow.
However, due to the spectral characteristics, the green and red components are relatively small, so the color rendering index of the LED is generally less than 100, generally between 70-80.In order to improve the color rendering index of the LED, red or green phosphors are added to the LED, but due to the low excitation efficiency of the red and green phosphors, the color rendering index of the LED is increased. Pink or green phosphors are added. Later, but the overall lumen has been reduced a lot.
In mainstream industries, the higher the LED color rendering index, the lower the luminous flux. At present, in the LED industry, while increasing the luminous flux, there is no better way to increase the color rendering index.
From this we draw a conclusion: the higher the color rendering index, the lower the brightness. If you need to buy high-performance light strips, it is best to choose a lower color rendering index, such as CRI＞70 or CRi＞80. If you don't need high-efficiency light strips, you can choose light strips with a color rendering index> 90.
Suntechled provides both high-efficiency light strips and regularly led strips for your choice, click here to know the difference between high-efficiency light strips and high-efficiency led strips, also, you can contact firstname.lastname@example.org for more product information.
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