What is the UGR?


Unified Glare Rating

what is urg?
The acronym UGR is commonly used to refer to Unified Glare Rating, that is the degree of luminous harassing glare. This index is subject to European and national regulations that establish the limits allowed in working environments. Specifically, in Italy the UNI 11165: 2005 standard applies, which indicates the criteria for calculating the unified glare index deriving from artificial light sources.

Why is the UGR important?

Lighting is often underestimated not only by individual consumers but also by companies. However, it is important to ensure that it is adequate for the work environment so that work activities can be carried out in complete safety. In fact, lighting not only guarantees a higher level of safety but also affects the well-being of workers and stimulates productivity. For this reason, it is advisable to plan carefully the lighting.

How is the UGR measured?

The UGR takes into consideration several factors such as the quality of the light output of the lighting products, their location within an environment, the distance between the light sources and the observer, and the characteristics of the environment itself (size and index of reflection). All these elements combine to determine the general lighting quality of an environment.
·        Shape and dimensions of the environment itself
·        Reflection of walls, ceiling, and floor
·        Type of light source
·        Arrangement and number of light sources in a space
·        Observer position

For each application area, we recommend a UGR less than a certain value. This varies in relation to the need for quality lighting and time spent in an environment.
Also, read about Why flicker with dimmable LED lights?

Comments

Post a Comment

Popular posts from this blog

How to choose the right beam angle for LED downlights?

Image
What is the opening angle? The beam angle is something you need to pay attention to when choosing the right LED lighting for space. This is as important as the color temperature. The angle of the beam indicates the diffusion of light from the light source. A narrow beam gives a concentrated light that is better for accent lighting. A wide beam gives a more general and softer light. Most LED lights are available in a choice of beam angles. From a very narrow 15 spots to a wider 60-degree spot. A narrow beam angle makes the light more concentrated and intense. A wider beam angle will distribute the light better to more areas of the room. Knowing how to correctly use beam angles can greatly improve the lighting effect in a room. How to choose the beam angle for LED downlights? The light must be directed towards a specific object or person, not an area, it is necessary to choose a narrow beam angle; When lighting a large room etc., it is necessary to choose th...
Read more

Do LED bulbs heat up?

Image
Incandescent lamps undoubtedly heat up Incandescent bulbs are known for their high heat output when used. This disadvantage makes it difficult to replace faulty bulbs, as you have to wait a few hours for them to cool down and handle them safely. Specifically, the dispersion of heat is due to the internal tungsten filament which, when crossed by electric current, generates not only light but also heat. Precisely for this reason, these light sources are considered energetically inefficient. Only 10% of electricity is converted into light. The remaining energy is dissipated through heat, leading to: ·         A reduction in the life cycle (average duration fluctuates between 800 and 1200 hours) ·         Loss of electrical resistance of the internal filament ·         High energy consumption and frequent replacement of the light source The LEDs heat up but not in the same ...
Read more