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*Valid until 08/09/2025 - minimum purchase values: 11% off orders over €119 & 14% off orders over €179 - minimum purchase value = value of the goods kept and paid for - use the voucher code and you will automatically receive the higher discount depending on your order value - voucher only valid once per customer and order - discount cannot be used alongside any other voucher code promotions - the voucher can only be redeemed at online checkout - the following brands are excluded: Anglepoise, Artemide, Axo Light, Bankamp, Beacon Lighting, Berliner Messinglampen, BOPP, Bover, Brumberg, Casafan, CMD, Decor Walther, DOMUS, Egger Licht, EGLO, EGLO Connect, Escale, Eufy, Faro Barcelona, Flos, Fontana Arte, Forestier, Foscarini, FRANDSEN, Fritz Hansen, GUBI, HEAVN, HerzBlut, ICONE, Ingo Maurer, Jieldé, Kartell, Knapstein, Ledvance Smart+, LE KLINT, Louis Poulsen, Luceplan, LZF LAMPS, Marchetti, Marset, Masiero, Maytoni, Nordlux, Midgard, Nemo, Oluce, Philips, Philips Hue, PURE, Q-Smart-Home, Rotaliana, Serien Lighting, Slamp, Steinel, Tecnolumen, tint, Tom Dixon, TWINKLY, Umage, Westinghouse, WiZ.
If food in the kitchen looks less colorful than in the supermarket, the colorful dress in the bedroom loses its colors or the face in the mirror looks unnatural, this is often due to poor color rendering of the light source. Good to very good color rendering is therefore part of living comfort, as colors only come into their own with a light source with a high color rendering index (CRI) - whether in furnishings, fashion or dining.
What is the CRI value?
The color rendering index (CRI) indicates how natural the colors of an object appear when illuminated by a specific light source. This means that color rendering is a quality feature of a light source. A CRI of Ra 100 means a true-to-life reproduction of colors. Ra >= 90 indicates very good color rendering, Ra >= 80 good color rendering, which is ideal for living spaces and is the most common among modern LED lamps.
Buying light sources with a high CRI
It's so easy to convert to LED
LED lighting technology today achieves good to very good color rendering values (CRI >=80), so that it is possible to convert from halogen technology to LED without hesitation. It is not necessary to do more than replace the bulb. The advantages of the new lighting technology, including a service life of up to 50,000 hours and energy savings of up to 90 %, are all the more sustainable.
FAQ: Frequently asked questions about color rendering index
Where can I find the CRI data?
The color rendering index (CRI) can be found in the product details of every light source in the Lampenwelt.de online store.
How is the CRI measured?
With the help of measuring instruments such as the spectrometer, the CRI can be measured on the scale of natural daylight. This is done using 14 test colors defined in DIN 6169: 8 primary reference colors (old pink, mustard yellow, yellow-green, light green, turquoise blue, sky blue, branch violet and lilac violet) and 6 secondary reference colors (saturated red, yellow, green, blue, skin tones (pink) and leaf green).
The visible part of electromagnetic radiation from 380 nm to 780 nm is made up of various spectral colors. Natural daylight contains all colors. Light sources, on the other hand, have different light spectra. If a lamp emits a light spectrum with peaks and reduced intensities, the brightness is emitted unevenly to the color palette. This overemphasizes certain colors. If a spectral color is missing completely, surfaces in this color appear grayish.
The 14 test colors according to DIN 6169:
Where is a high CRI also important?
In addition to the home, good color rendering plays an important role in healthcare, industry, graphic design and fashion stores.
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The strike-through prices correspond to the manufacturer's RRP.
Included in the price of LED lights/bulbs is a contribution to recycling costs of €0.05. Included in the price of CFLs/fluorescent bulbs is a contribution to recycling costs of €0.15.
All prices include 23% VAT, delivery costs excluded.
***The Kartell Sale is valid until 30/07/2025. No voucher code required, sale prices are available in the webshop. Only while stocks last.
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