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What is CRI and why is it so important for lighting?

Updated: Dec 14, 2023


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CRI stands for the quality of color rendering of certain objects in the room with a light source compared to daylight.

The CRI is a specification of an LED light that expresses the reality of the displayed color of an illuminated object. The CRI is given in Ra, which stands for general reference index. The higher the Ra value, the more natural and pleasant the colors are reproduced or perceived. The lower the Ra value, the more the colors are distorted by the light source. The CRI is not to be confused with the color temperature, which distinguishes between cold and warm light. A warm white LED can therefore be just as good in terms of color rendering as a cold white LED. The CRI is also not to be confused with the brightness, which is given in lumens. A bright LED can therefore be just as bad in terms of color rendering as a dark LED. The CRI is an important factor in choosing the right lighting for different applications. The color rendering not only affects the appearance, but also the effect of the light on the eyes, the circadian rhythm and the emotions. Generally, warm light colors are cozy, relaxing and inviting, while cold light colors are activating, concentration-enhancing and factual.

To choose the right lighting for your LED lights, you should follow these guidelines:

For living rooms such as living room, bedroom or dining room, LED lights with a high CRI of 90-99 Ra are recommended, which create a cozy and homely atmosphere. These lights are also suitable for accent lighting of pictures, shelves or plants.

For work rooms such as kitchen, bathroom or office, LED lights with a medium CRI of 80-89 Ra are recommended, which enable a bright and clear lighting. These lights are also suitable for general lighting of hallways, stairs or entrances.

For special applications such as industry, commerce or medicine, LED lights with a low CRI of 70-79 Ra are recommended, which offer a high color rendering and a high contrast effect. These lights are also suitable for daylight simulation or plant lighting.

The CRI of LED lights is indicated on the packaging or in the product description. You can also search for LED lights with different CRI values on our homepage Startseite | Kent Leuchten. We offer you a large selection of high-quality and individual LED lights for indoor and outdoor use, which you can design according to your wishes and needs. All our lights are equipped with high-quality LED bulbs. You can also bring in your own ideas and expectations to create a unique light. An example of a beautiful and practical LED light with a high CRI is the  CORe | Kent Leuchten  Pendant Light, which you can order in different colors and sizes. This light is ideal for lighting dining tables, kitchen islands or workstations. It has a minimalist and elegant design that matches any style of decoration. It is also dimmable and controllable with Apple HomeKit, Amazon Alexa or Google Assistant. Conclusion The CRI is a measure of the quality of color rendering of LED lights compared to daylight. The CRI is given in Ra and ranges from 0 to 100. The higher the Ra value, the more natural and pleasant the colors are reproduced. The lower the Ra value, the more the colors are distorted. The CRI is an important factor in choosing the right lighting for different applications. If you are looking for high-quality and individual LED lights with different CRI values, then take a look at the offer from Kent Leuchten at https://www.kentleuchten.de. You will surely be impressed by the quality, the service and the price. We hope you enjoyed this text and that you will visit us again soon. Until next time!