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About Phosphor-converted near-infrared LED

About Phosphor-converted near-infrared LED

Near-infrared spectroscopy history and principle Infrared light is a portion between the visible and microwave regions of the electromagnetic spectrum ranging from 700 nm to 1 mm. Infrared light was discovered by a German-British astronomer named William Herschel in 1800...

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Understanding CIE1931 and CIE 1976

Understanding CIE1931 and CIE 1976

CIE 1931 The CIE 1931 were created by the International Commission on Illumination (CIE) in 1931. And this is the first time human created an explanation between distributions of wavelengths in the visible spectrum, and colors can be perceived in...

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What is human centric lighting?

What is human centric lighting?

Scientific research indicates that light is one of the main driving forces of the circadian system, whether it is natural sunlight or artificial light sources, they are all can trigger a series of physiological rhythm reactions. As we all know,...

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Color Quality Scale: The definition of CQS

Color Quality Scale: The definition of CQS

Background Generally, in order to meet the new demand of solid-state lighting (SSL) market and communicate with consumers about the color quality of lighting products, NIST (National Institute of Standards and Technology) has developed the light color quality meter, which...

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YUJILEDS® releases IP65 IP67 high CRI LED flexible strip

YUJILEDS® releases IP65 IP67 high CRI LED flexible strip

LED soft ribbon is getting popular due to its flexibility, and YUJILEDS® also offers flexible ribbon based on its remarkable color reproduction quality. With the increasement of different applications, special environments are required for using the LED ribbons, then water-tightness...

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How to select a good cooler for your LED COB?

How to select a good cooler for your LED COB?

Why heat sink is important for LED lights? LED, Lighting Emitting Diode, is the semiconductor component which can transfer the electric energy into light. However, in the process of power transfer, apart from emitting lights, there is lot of power...

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LED LIGHTING TECHNOLOGY IN PLANT GROWTH

LED LIGHTING TECHNOLOGY IN PLANT GROWTH

PART V: “LIFETIME” Lifetime is a critical index for evaluating lighting fixtures. Conventional lighting fixtures are relatively inexpensive, of which the most widely adopted type is the fluorescent light, with only 3000 hours’ longevity. Compared to that, LED lights are...

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LED LIGHTING TECHNOLOGY IN PLANT GROWTH

LED LIGHTING TECHNOLOGY IN PLANT GROWTH

PART IV: “COLD LIGHT SOURCE” Before LED lighting technology came to maturity, greenhouses were the major form of artificial plant factories. In greenhouses, temperature condition can be better controlled than plants grown outside, and sunlight is obtained during the day...

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