HIGH CRI LED LIGHTING

BY YUJI LED

HIGH QUALITY,
ENERGY EFFICIENT,
HIGH CRI

Not all white light is the same. Many of the incandescent and halogen "replacement" LED lights currently on the market use less energy but are not true replacements as the white light they emit is of relatively poor quality. In applications where appearance is of paramount importance, light quality cannot be compromised.

WE FOCUS ON LIGHT QUALITY

VIBRANT COLORS
TRUE APPEARANCE


VX Series
HIGH CRI LEDs

VX high color rendering index LED lights dramatically improve the appearance of products by allowing colors to appear clear, vivid and distinguishable all while consuming significantly less energy. By taking a slightly different approach and creating an innovative emission spectrum, our LED lights have achieved the highest color rendering available using the most advanced technologies, offering a true energy efficient replacement.


The Yuji LED system provides full spectrum lighting, giving off a very high color rendering index..

YUJI LED


Blue chip LED Lighting provides uneven light particularly in the red area.

STANDARD LED


Compact fluorescent lighting releases uneven spikes in spectra.

FLUORESCENT


WHAT IS HIGH CRI?

CRI (color rendering index) is a measure of how accurately a light source illuminates objects' true colors. Our LED lights have CRI values of up to 98, indicating that our LED lights are able to produce white light that approximates halogen or incandescent lighting and natural daylight.





A VISUAL COMPARISON

Fluorescent, standard and Yuji 98 CRI LEDs as viewed through optical filters. Differences in spectra are immediately noticeable. Optical Linear Variable Bandpass Filters courtesy of DELTA Optical Filters.

High CRI LED Lighting is represented in delta optical filters as a more complete, full spectrum light.

MORE THAN JUST HIGH CRI

CRI is merely an index value that considers 8 color samples. Though not included in the calculation of CRI, the CRI R9 special test color sample index is typically very low in blue-chip LED lights, reflecting the fact that they render red colors particularly poorly. Yuji LED lights have Ra values all above 90, and show superior testing results for the recently developed CQS (Color Quality Scale) as well.

Due to our innovative method of producing white light through a different type of chip and multiple phosphor conversion, we have achieved white LED light that is both quantitatively and qualitatively superior.

See our test reports here.

Are you a photographer? Click here for information on TLCI and equipment based color accuracy metrics.


Though not included in the calculation of CRI, the 
     R9 special test color sample index is typically very low in blue-chip LED lights, causing 
     them to render red colors particularly poorly.


Yuji LED CRI values are very high, including R9 and R12 values which are crucial for color quality.


Though not included in the calculation of CRI, the 
     R9 special test color sample index is typically very low in blue-chip LED lights, causing 
     them to render red colors particularly poorly.


Yuji LED CRI values are very high, including R9 and R12 values which are crucial for color quality.


Though not included in the calculation of CRI, the 
     R9 special test color sample index is typically very low in blue-chip LED lights, causing 
     them to render red colors particularly poorly.


Yuji LED CRI values are very high, including R9 and R12 values which are crucial for color quality.




Yuji High CRI LED and competitor comparison at 2700K.

Yuji LEDs at 2700K follow the spectral curve of an incandescent lamp very closely. Unlike competing incandescent "replacements" on the market, Yuji LEDs provide full spectrum coverage at both ends of the spectrum.

Yuji High CRI LED and competitor comparison at 6500K

Yuji LEDs at 6500K provide spectrum coverage that is unmatched in quality and breadth. Competing LEDs have a significant "blue spike" to produce a cool color temperature point, which can be very problematic for rendering daylight color points.


TRUE COLOR RENDERING

DEEP REDS
BRIGHT CONTRAST


COLOR MIXING WITH HIGH CRI

What happens when we implement a hybrid solution mixing a high CRI warm-white color temperature LED with a high CRI daylight-white color temperature LED? Our test results show that at all color temperatures in between (2700K - 5600K), high CRI is maintained, including R9.



APPLICATIONS OF HIGH CRI LED LIGHTING

High CRI full spectrum lighting can dramatically improve the appearance of objects, particularly in retail stores, shops, super-markets, museums, galleries and exhibits where red colors are prominent and presentation and appearance are critical. High CRI LED Lighting also has other applications in areas such as hospitals or textile industries where color differentiation is crucial in work performance. High CRI LEDs are ideal in locations where savings in energy consumption are desired, yet quality of light must be maintained.

DISPLAYS

Color rendering is crucial for displaying any type of exhibition, particularly those with vibrant reds.

FOOD

Appearance is critical for food and produce. High CRI LEDs can make food look fresh and appetizing.

ARTS

Precise and accurate distinctions of color are needed in visual arts and photography.

RETAIL

Looks are everything in retail. Why let low quality light diminish your products' appearance?

TEXTILES

Subtle gradients and color differences in fabrics can only be seen under good quality lighting.

MEDICAL

A patient's flushed, red face might go undetected under low quality light.



COMPARING OUR HIGH CRI TECHNOLOGIES

Our high CRI LED technologies utilize two different methods of re-creating natural lighting. See below for a quick overview of the differences.

BX HIGH CRI

VX ULTRA HIGH CRI

BLUE LED

R+G PHOSPHOR

VIOLET LED

R+G+B PHOSPHOR

CRI (min): 90/93 95
CRI (typical): 93/95 97
R9 (min): 60~90 90
R12 (min): 60~80 90
Luminous efficacy: 80-140 lm/W 65-85 lm/W
Form factors: 2835 & 5730 SMDs, 10W, 25W & 100W COBs 2835 & 5730 SMDs

BX series high CRI LEDs using blue die are well suited for applications requiring high power, efficiency and excellent color rendering. Yuji LED's phosphor expertise provides a no-compomise, high CRI / high efficacy solution.

VX series ultra high CRI LEDs using violet die provide the highest rendering quality in the industry - up to 98 CRI. Output covers the entire spectrum including violets, cyans, deep reds, and brings out colors perfectly. Ideal for applications where high color quality is of absolute importance.

BROWSE OUR HIGH CRI PRODUCTS

LED PACKAGES

LED STRIPS

LED TUBES

LED BULBS

MORE COMING SOON!

We also take orders for custom luminaire and PCB designs. Please contact us for more information.





CONTACT

1250 Oakmead Parkway Suite 210
Sunnyvale, CA 94085 USA
TEL:+1-612-666-YUJI


Rm.808 Science and Technology Building,
No. 5 Zhongguancun South Road, Haidian District, Beijing, China.
TEL:+86-10-68469232
FAX:+86-10-68468791
E-mail:info@yujigroup.com


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Yuji International Co., Ltd.