Standards and certifications
You are always assured of an attractive design, reliable products and the best materials. Within our Hak4t group, of which Hakvoort artificial light is part, our products and/or services comply (if applicable) with, among other things:
- EN-14963
- EN 12464-1
- EN 12464-2
- EN 12193
- architectural appearance
- VCA* (2008/5.1)
- NEN-EN-ISO 14001:2015
- ISO 9001
- ENEC
Light technical concepts
LM79 / LM80 report
An LM79 or LM80 report indicates that the LED lighting meets the requirements set by the government. The data contained herein is measured by independently accredited institutions. These institutions then generate official measurement reports, which are included in the LM79 and LM80 report.
Luminous flux (lm)
Amount of light that a light source emits per second in all directions. The unit for luminous flux is Lumen (lm).
Luminous intensity (cd)
Luminous intensity of a light source is the amount of light that the source emits. The luminous intensity is the luminous flux emitted in a certain direction (angle). The unit for luminous intensity is Candela (cd).
Illuminance (lx)
The illuminance or illumination is the total incident light flux that reaches a certain surface. The unit for illuminance is Lux (lx).
Luminance (cd/m²)
Luminance is the amount of light emitted or reflected per unit area. The unit for luminance is expressed in candelas per square meter (cd/m²).
Light and radiation (nm)
Light is electromagnetic radiation with the frequency range visible to the human eye. Radiation between 360 and 830 nm. The different wavelengths are seen by the eye as different colors. The unit of radiation is shown in nanometers (nm).
Luminous efficiency (lm/W)
Luminous efficiency indicates what part of the absorbed electrical power is converted into light. The unit for light output is expressed in lumens per watt (lm/W).
Color temperature (K)
The color temperature of a light source for white light is defined as the temperature of a black body whose emitted light gives the same color impression as the real light source. The unit for color temperature is expressed as kelvin (K).
Light color
The light color is very well described by the color temperature. Three groups can be distinguished: Warm white: <3000K Bright white: 3000 – 5000K Daylight white: >5000K Lamps with the same light color can have very different color rendering properties. This is because the spectral composition of the light differs greatly.
Color Rendering Index (CRI)
Color perception by the human eye depends on the color rendering properties of the light source and is expressed in Ra based on the color rendering index. This indicates to what extent the colors of an object, as perceived by the eye, correspond to those of a reference light source. A light source with Ra=100 displays all colors optimally. The lower the Ra value, the more difficult color recognition becomes. The minimum Ra value in the office or school must be 80.
Glare degree (UGR value)
The UGR value (Unified Glare Rating) is a value that indicates the degree of uncomfortable glare. The lower the value, the less light pollution users will probably experience. Applying the right lighting deserves a lot of attention because it has a major influence on human productivity and functioning. The light must be bright enough to carry out work properly, but must not cause glare or glare. The UGR value of the edge light LED panel is very low (<16), making it applicable in even the most demanding environments where such a low UGR value is important.
