What Are the Requirements for UGR and CRI of Ring Linear Pendant Light in European Countries?

What Are the Requirements for UGR and CRI of Ring Linear Pendant Light in European Countries?

UGR refers to the Unified Glare Rating, It is an evaluation index for indoor discomfort glare proposed by CIE (International Commission on Illumination). In lighting design, UGR can be used as an indicator of personal comfort with lighting indoors. UGR is a psychological parameter used to evaluate uncomfortable glare. The smaller the value, the lower the glare and the higher the lighting comfort. According to CIE (International Commission on Illumination) standards, UGR in offices and other indoor workplaces is generally required to be controlled below 19.

Color rendering index (CRI) refers to the ability of a light source to restore the color of an object, which is also a measure of the color rendering of a light source. CRI is represented by Ra. The larger the Ra value, the better the color rendering of the light source. The color rendering index requirement for office lighting is generally greater than 80.

LED ring linear pendant lights are popular among people because of their unique design and superior performance. More and more office lighting, commercial lighting or retail stores like to use round pendant linear lights.Customers from European countries also like to use ring linear pendant lights for lighting or decoration.

European countries have specific requirements for the technical parameters of LED disc lights,especially the anti-glare value UGR,color rendering index CRI, energy efficiency level and power factor PF, etc.

Generally speaking, European countries require the anti-glare value UGR of LED ring linear pendant lights to be below 19, to reduce the stimulation of light to human eyes and the impact of glare on visual comfort.

In addition, the color rendering index (CRI) of LED disc lights is required to be relatively high, with a minimum of above 80, in order to restore the true color of objects and improve visual comfort.

Different lighting environments such as shopping malls and offices will also have different UGR and CRI requirements for LED linear lights.Some special places, such as store display cabinets, require a CRI greater than 90 or 95, and some require a color rendering index greater than 97.As a professional LED lighting manufacturer, we can customize CRI according to customer needs.