Guide to Lighting Terms and Concepts

Q: SDCM

The LED module's light color quality, or chromaticity, is a measure of the spread in light color. The deviation in color is indicated by MacAdam ellipses SDCM (Standard Deviation of Color Matching) according to the CIE 1964 standard. The MacAdam system grades chromaticity on a scale of 0-10, where 0 is the best chromaticity that can be achieved.

Here's what you should consider when choosing lighting!

There are many concepts to consider when choosing lighting. The.

LED

Long-life LEDs.

LUMEN

Luminous flux – the light source's intensity/perceived strength.

Kelvin

Color temperature is measured in Kelvin degrees (K) and describes a light source's color from warm red tones to cool blues, see also below under the term CCT.

LUX

Measurement for the amount of light at a defined surface. E.g., 40 cm distance which indicates illuminance.

ASSEMTRICAL LIGHT

Means that the light is spread at an angle from the light source, so-called light diffusion, so that the lamp doesn't have to be placed exactly where the light is needed. A big advantage for larger desks, but also when you have a small workspace and don't want the lamp to be in the way.

UGR

Increases the risk of glare.

CCT

CCT is about being able to shift the temperature of the light from warm to warm white or cool light. This is also the function that mimics the different light temperatures of the day. During the morning hours, it's good to have cooler light to feel more awake, and as it gets later into the afternoon and evening, the warmer light we should use to prepare the body for rest. But we can also use different color temperatures to adjust our mood for a particular activity. Warm white light: 5300K Daylight: 6500 K

RA

Color rendering (numbers less than 80 = high risk of color distortion compared to daylight colors).

SDCM

The LED module's light color quality or chromaticity is a measure of the spread in light color. The deviation in color is specified with MacAdam ellipses SDCM (Standard Deviation of Color Matchingaccording to the CIE 1964 standard. The MacAdam system grades chromaticity on a scale of 0-10, where 0 is the best achievable chromaticity.

ENERGY LABEL

Shows the energy class of the lamp. New LED lamps have an F rating.

LUMEN/WATT

Lumens describe how much light a lamp produces. Higher lumens mean more light. Wattage can sometimes be mistaken for a measure of brightness, but it is actually a measure of energy consumption. A 100-watt incandescent bulb is equivalent to approximately 1200 lumens, while a 40-watt incandescent bulb is equivalent to approximately 400 lumens.

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