BC Series LED
High CRI, efficient, full line-up.

Industrial highest CRI

In all parameters of an LED, CRI (Color Rendering Index) plays a most important role since it determines the illumination quality essentially. Since 2013, Yujileds dedicates to providing the most outstanding quality LED starting with high CRI technology, and till today it still offers the best color rendition LED to the industrial and consumer markets.

Yujileds BC series LED is based on the efficient blue (typical 450nm) die, mixing with Yuji advanced phosphors and specifically designed spectral recipes. Although there are more and more nominal “high CRI LED” manufacturers on the market, after relevant test and analysis, it is proud to say that Yujileds BC series LED is still the top performance product on the global markets. Achieving typical Ra 97 and minimum Ra 95, the stability and consistent quality in mass production are verified by statistical identification.
BC

Enhanced CRI R9 technology

The most crucial index of R9 is missed in Ra calculation.

The standard CRI Ra is the average score of the first eight Test Color Samples (TCS), where the 9th for saturated red color is missed. However R9 is significantly different for different light sources. In spectral analysis and CRI arithmetic, the integral area between the spectrum and the spectral reflectance response of TCS-9 decides the R9 to a large extent – in other words, how much of TCS-9 spectra reflectance is overlaid in the light source spectrum, that is a key factor.
BC R9
It is obvious to see that from 600nm, which is just the start of red color in the visible spectrum, the TCS-9 spectral reflectance raises sharply, in consequence, if the light source does not have sufficient spectral power distribution in 600nm-800nm, it will be difficult to get a high R9. The capability of rendering the red color cannot be promised if the red spectrum is missed or not sufficient in the original light. In the comparison of fluorescent and halogen, apparently, halogen offers the richest 600+nm power, while the discrete fluorescent spectrum has limited energy there. Then in this comparison, halogen R9 = 99 but the fluorescent is R9 = -27. Comparing a standard LED to Yujileds BC series LED at 3000K, although the emission principle is the same, the results present different R9 significantly where the standard LED is R9 = 13 and Yujileds BC series LED is R9 = 96.
Fluorescent
Halogen
CRI 80 LED
Yujileds BC series LED
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Transcend high CRI

- "Can I have high CRI LED beyond the standard 2700K – 6500K range? "

- "Yes! Yujileds BC series high CRI LED now is available in 1800K – 20000K."

1800K

2200K

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2700K

3000K

3200K

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5600K

6500K

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20000K

The CCT option of BC series LED can be extended to 1800K-20000K, maintaining the CRI still above 92-97. 

- "1800K-20000K is quite a wide range, but how about respective CRI in these color temperatures?"

- "Yujileds advanced technology on the phosphor and spectrum provides promising Ri values even in the extreme CCTs."

1800K

2200K

2400K

2700K

3000K

3200K

4000K

5000K

5600K

6500K

10000K

20000K

More questions? Talk to our expert today!