Importance of Low Glare Lighting in Your Healthy Life

What is Healthy Lighting?

Most people don’t know what kind of lighting environment is exactly healthy lighting. Similar concepts such as “bright enough = healthy lighting” and “natural light = healthy lighting” still exist in many people’s minds. Most of these users will not require too much on the lighting environment.

These needs are reflected in the user’s choice of LED lighting products. Most users will prioritize appearance, quality (durability and light decay), and whether the color temperature can be adjusted. The brand’s popularity ranks fourth.

Compared with the above-mentioned users, the needs of the students for the light environment are often more clear and specific. They tend to have a higher color temperature, which can inhibit melatonin secretion, and make them more awake. Also, they require the light should be flicker-free and low glare, which will help them not easy to get tired when studying. 

With the improvement of people’s living standards, in addition to being sufficiently bright, people began to pursue a healthier and more comfortable light environment. At present, there is an urgent need for healthy lighting in places with high health concerns, such as schools (in the field of Education Lighting), office buildings (in the field of Office Lighting), and living spaces (in the field of home lighting). The needs for healthy lighting in these three fields are greater.

Someone may ask: What is healthy lighting? What kind of effect does healthy lighting have on us? What kind of light environment is needed by people? Studies have shown that the effect of light on humans is not only the direct visual sensory system but also on other non-visual sensory systems. Light is one of the main driving forces of the human body’s circadian system. Whether it is natural sunlight or artificial light sources, it will trigger a series of circadian reactions. Melatonin affects the internal biological rules of the body, including circadian, seasonal and annual rhythms to adapt to the changes in the outside world.

Healthy lighting is to improve and enhance the conditions and quality of people’s work, study, and life through lighting, and to promote their psychological and physical health. It mainly means that the spectrum of the artificial light source used for lighting should be as close as possible to the visible spectrum of the sun (i.e., imitating natural light lighting), and the lighting must meet the functional requirements of the place and the psychological requirements of people. It not only requires the comfort of lighting, but also satisfies people’s psychological emotions in terms of color temperature, brightness, and harmony between light and shadow.

Not only does artificial lighting affect mood and human circadian rhythms, but it can also be responsible for headaches, eyestrain, skin conditions, and even sight loss in extreme cases. Good visual comfort is critical in an office or education environment where artificial lighting is prevalent. Glare can cause discomfort and disability in some cases, so it’s an important consideration when choosing lighting.

Glare is caused by a significant difference in luminance (brightness) between a task or object (something which is being looked at) and surrounding sources of brightness in the peripheral field of vision. The Unified Glare Rating (UGR) is a measure of the glare in a given environment.  A lower UGR value indicates less glare and therefore relates to a more visually comfortable environment.

How to choose Healthy Lighting?

Modern lighting standards require UGR to be equal to or less than 19 in office environments. UGRs of 22 and above are acceptable in environments where tasks are less visually demanding.

Lighting designers need to be very aware of ensuring that the side-effects of lighting are controlled. In addition to making sure that there is enough light for safety but not too much light, designers can use options like natural light sources (where possible) and reduce glare and flicker. Low-glare (UGR<19) luminaire options are an important part of this mix.

At a fundamental level, a glare rating shouldn’t be attributed to a luminaire; rather, it can only really describe the glare characteristics of an environment. The rating is derived from a combination of luminaire characteristics (distribution/optics and the size of the luminous opening) and room characteristics (geometry, reflectances, illuminance ratios etc.), and is therefore only reliably evaluated by 3D lighting simulation software. However, it is possible to compare glare from one luminaire to the next if all of the other geometrical and environmental factors are kept consistent, and this is known as the ‘tabular method’. While this approach may not necessarily reflect the glare experienced in your specific environment, it does provide a useful benchmark for comparison.

A UGR<19 rating attached to a fitting generally indicates that it is suitable for use in environments that require good glare control.

Healthy Lighting by Coolux


Track lighting has a range of applications in a school setting. It is most appropriate for specific task lighting and can be used over benches in technical areas such as the science labs or in the food technology room. Whether surface mounted or suspended, track lighting is a very adaptable lighting solution. Tracks can be configured to fit the shape of any room and lighting heads can be added and removed as required.

Low glare high bay lighting (UGR<19), ideal for gymnasiums, multi-purpose rooms, recreational areas, hockey arenas or any sports installation. Innovative diffused lens minimizes glare while maximizing lumen output. Wire guards are also available for added protection.


Our honeycomb design makes the lighting more layered and diversified. The honeycomb wall has a certain degree of light transmittance, which ensures the brightness and the light-emitting angle. Also, glare control is the key element of the lighting experience. With its low glare, it can effectively protect students’ eyes. It is suitable for reading rooms and libraries.

If you need more information about these products, contact our team for more detailed specs and pricing information.

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