HIGH CRI LED LIGHTING
BY YUJI LED
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
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.
|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.
A VISUAL COMPARISON
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.
Don't believe us? See our
test reports here:
Are you a photographer? Click here for information on TLCI and equipment based color accuracy metrics.
FULL SPECTRUM LIGHTING
Above is a comparison of a 2700K Yuji VX LED spectrum with a competing 2700K 85 CRI blue LED. Notable in the VX spectrum are the lack of a blue peak at 450 nm and a valley that follows around 485 nm (present in the blue chip LED), and a spectrum that very closely follows that of an incandescent.
Below is a comparison between a 5600K Yuji VX LED, a competing 5600K blue LED, and a "daylight" 5000K CFL. Unlike the others, the Yuji VX LED provides full, even coverage across the spectrum, including the deep violet and deep red regions.
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.
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
|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 LED'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
MORE COMING SOON!