HIGH CRI LED LIGHTING

BY YUJI LIGHTING


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


PRECISION Series
HIGH CRI LEDs

PRECISION 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.. Blue chip LED Lighting provides uneven light particularly in the red area. Compact fluorescent lighting releases uneven spikes in spectra.
YUJI LED STANDARD LED 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.


High CRI LED Lighting improves the appearance of food, which is particularly important in food retail.


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 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. Don't believe us? See our test reports here (3200K or 5200K ).

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 Lighting's high CRI LED offers Ra values that are all above 90 and reveal excellent colors.

FULL SPECTRUM LIGHTING

Yuji high CRI LEDs have emission spectra that very closely approximate black body radiators. This means that our LEDs reveal colors just the same as candle light (1900K), incandescent (2700K), halogen (3200K), balanced white (4000K) and daylight (5600K).

Yuji Lighting high CRI warm white LEDs approximate 1900K black body radiators.

Yuji Lighting high CRI warm white LEDs approximate 2700K black body radiators.

Yuji Lighting high CRI warm white LEDs approximate 3200K black body radiators.

Yuji Lighting high CRI warm white LEDs approximate 4000K black body radiators.

Yuji Lighting high CRI warm white LEDs approximate 5600K black body radiators.



TRUE COLOR
RENDERING

DEEP REDS
BRIGHT CONTRAST


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.

BLUE CHIP EMISSION

VIOLET CHIP EMISSION

CRI (min): 90 95
CRI (typical): 93 97
R9 (min): 60 90
R12 (min): 60 90
Luminous efficacy: 80-110 lm/W 65-75 lm/W
Warm white spectrum (3200K CCT):
Daylight white spectrum (5600K CCT):

Natural white LEDs using blue chip emission are well suited for applications requiring high power, efficiency and excellent color rendering. Yuji Lighting's phosphor expertise provides best-in-class luminous efficacy and stability.

Full spectrum white LEDs using violet chip emission 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.

BROWSE OUR HIGH CRI PRODUCTS

LED PACKAGES

LED STRIPS

LED PAR LAMPS

LED TUBES

LED MR16

LED BULBS

MORE COMING SOON!

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



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

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