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Your handbook for the industry terms of LED lighting.

This page is designed to give you better insight and understanding of some of the various terms that surround the LED lighting industry. Should you ever have any questions pointed towards the technical aspect of LED lighting, or our manufacturing and testing process, please reach out to us and we will be happy to clarify it for you.

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A measure of the total quantity of visible light emitted by a source per unit of time.

The lumen is a unit of measurement for the brightness of light. If a light bulb is blindingly bright, it produces a lot of lumens. The lumen is a basic unit for measuring brightness, just as the gram is a basic unit for measuring mass. Lumen is related to the word luminous, which means “bright” or “radiant.”. In a more technical definition of the word, Lumen is also defined as the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela.


The color temperature of a light source.

Kelvin is used in lighting to measure the color temperature of a particular light bulb. And in short, the higher the Kelvin rating (expressed in K), the whiter the light will be. In a more technical definition of the word, Kelvin is also defined as the SI base unit of thermodynamic temperature (equivalent in size to the degree Celsius), first introduced as the unit used in the Kelvin scale.


RA value is the property of light to reproduce colors from the material or things on which light falls.

The colour rendering index defines the ability of a light source to identify colours, and is measured on a scale of 1 - 100. On this scale a rendering of 1 is monochromatic light, and a rendering of 100 is natural sunlight, so you can think of the scale as a measure of the quality of light produced by the source. The higher the Ra value is, the less the artificial light distorts the colour of objects.


A color mixing programs that allow millions of colors to be output in LEDs starting with the three primary colors of red, green and blue.

RGB LED means red, blue and green LEDs. RGB LED products combine these three colors to produce over 16 million hues of light. ... Some colors are “outside” the triangle formed by the RGB LEDs. Also, pigment colors such as brown or pink are difficult, or impossible, to achieve.

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