Laidishine Logo-04

What is Color Rendering Index (CRI) For LED Lights (1)

The color rendering index, also known as the CRI or Ra value, provides information about the quality of the color rendering of a light source.
LED Lighting-Blog Cover

The color rendering index, also known as the CRI or Ra value, provides information about the quality of the color rendering of a light source. Let’s talk about CRI and learn how to achieve natural-looking lighting with LED lamps.

Color rendering index definition

The color rendering index indicates how naturally the colors of objects or their surroundings appear with the light of a particular light source. It is a comparative value with which the color impression of a light source can be determined. With the help of the color rendering index, the light quality of different illuminants can be compared. The following terms are also commonly used:

Color Rendering Index (CRI)

Rendering index (R)

General rendering index (Ra)

Various designations

All designations and their abbreviations refer to the color rendering index. For many lamps, the index is indicated as a CRI value or Ra value on the packaging or lamp.

The color rendering index has a value between 1 and 100 and has no unit. Natural light (sunlight) has a CRI of 100. Incandescent and halogen lamps also have the maximum color rendering index of 100. Fluorescent lamps, on the other hand, only have a CRI of 60 to 90.

Practical example

We are used to see illuminated objects in their natural colors from the old light sources with filaments. With fluorescent tubes, the colors of the illuminated objects sometimes look slightly distorted. These look as if someone had put a grey veil over the colors, making them less luminous.

The effect becomes more visible when we go into an environment with red lighting with a red clothing, for example. Here, the red clothing no longer stands out from the red ambient light. If we go into the sunlight with the red clothing with Ra 100, the red color is very noticeable again.

Share:

More Posts

Fresh Meat

5 Tips for meat long-term store in Refrigerator

One of the most popular foods on the table is meat because of its taste and high nutritional value. Many families store their uneaten meat in the refrigerator for longer periods while also maintaining its freshness. Here’s the problem, though. There is no end to freezing. Never go over three months without eating. These are some long-term refrigerator meat storage tips.

LED strip

How to select a shelf light that runs on 12 or 24-volts

LED shelf lights are becoming a large retailer’s go-to tool for increasing turnover because they not only make the product area brighter and draw customers’ attention, But they also include energy-saving, explosion-proof, and safety features. but how can you choose between the popular 12V and 24V low-voltage lights? so, we will address this query in more depth.

shelf led lighting

Guide to the selection of shelf lighting

When shelf lights are used properly, amazing visual effects and communication occur.
 Retailers take note: supermarkets, convenience stores, and retail chains are now utilizing lighting design to boost sales. Here are some suggestions for selecting the ideal lighting design choose shelf light.

the effect of refrigerated Ligting

Why T8 LED tube is ideal for refrigerated light

Refrigerator lighting is crucial not just because it influences consumer decisions and, as a result, sales, but also because good lighting may help retailers save money. Retailers frequently struggle with the high cost of electricity and subsequent upkeep. To address a retailer’s pain problem, I recommend T8 LED light. This article focuses on the advantages of T8LED.

Get A Quick Quote

We will respond within 12 hours, please pay attention to the email with the suffix “@laidishine.com”

Also, you can go to the Contact Page, which provides a more detailed form, if you have more details for products or would like to obtain a light solution negotiated.

Data Protection

In order to comply with data protection laws, we ask you to review the key points in the popup. To continue using our website, you need to click ‘Accept & Close’. You can read more about our privacy policy. We document your agreement and you can opt out by going to our privacy policy and clicking on the widget.