The role of light in hospital wards

Wellness and Transformation

Lighting is an amazing resource that can have a truly significant impact on people, especially when it is effectively incorporated into healthcare facilities such as hospitals and healthcare centers. 

This integration can make all the difference in the healing environment and play a key role in the well-being of patients, their families and medical specialists alike.

The effects of light

It is very important to know to what extent light can influence our well-being.

Worldwide research has revealed that there is a clear and positive relationship between patients’ exposure to natural light during the day and the adaptation of artificial lighting levels.

Given that we spend so much of our time indoors, optimizing lighting to create a sense of spaciousness and connection to the outside environment can be extremely beneficial for the people present. This is particularly relevant in hospital facilities, such as intensive care wards, where adequate exposure to light can strengthen the biological rhythm of patients, contributing positively to their well-being.

That is why innovative technologies have emerged to support lighting in these areas, such as LED lights, seeking to improve healing spaces and support patient comfort and staff efficiency, adapting to individual needs seamlessly. 

At Actilum we create and develop tailor-made products and applications to suit the need of each project.

We offer our lighting laboratory to create the most appropriate light according to each client’s requirements.

LED lighting at the service of patients and medical staff

The use of LED technology in soft and adjustable tones in hospital lighting contributes to establishing a relaxing and pleasant atmosphere. This approach not only helps the patient’s condition, but also benefits medical professionals.

Creating relaxing spaces with good lighting

Incorporating detailed images and good lighting, which provide a sense of calm in medical examination rooms, can help divert the patient’s attention away from distress and anxiety. For a sense of calm, we can incorporate a wide range of natural concepts such as landscapes, warm colours, animals, the sea and mountains. 

When image and light are perfectly combined

Sometimes, certain medical examinations are carried out in enclosed spaces that lack natural light, such as MRI rooms, which are often cold and lacking in decoration.

Visual stimuli from different light sources can be of great help in alleviating the feeling of restlessness and confinement. The distracting effect can help patients to experience the transition to a medical examination in a more relaxed way. 

LED ceiling lights

LED ceiling lights with relaxing backlit images create a “window” effect and provide a great lighting solution to accompany this experience with great results. 

The use of distraction methods, such as LED lighting and decoration, in health and wellness environments, such as hospital wards, is increasing. They are implemented in different environments as they play a key role in the physical and mental state of the people involved. 

In addition, many lighting modules offer high light levels, providing optimal conditions for medical professionals to assess patients. Intelligent control systems are employed that allow automatic management of the lighting, adapting to the dynamic light rhythm. 

These technologies represent a real and effective solution for patient rooms, corridors, common areas of hospitals, waiting rooms, facilities with MRI equipment, chemotherapy and radiotherapy rooms with medical equipment, psychiatric areas with long periods of treatment, and spaces where family and staff gather.

At Actilum we offer personalised advice. Our research and development (R&D) team is always ready to work with each project.  

The right lighting is not only light; it is well-being, comfort and recovery.

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Built-in soft starter

When an LED system is switched on, there is a current spike during the first few milliseconds, during which the power supply must build up charge and deliver the required power.

Soft-start does not require immediate power delivery; instead, the power supply delivers power gradually during those first few milliseconds.

By using this approach, system stability is ensured, even in the presence of multiple sources connected to the grid, thus avoiding potential interruptions and eliminating any glare on power-up.


Luminous flux maintenance

The amount of light from any luminaire decreases over time.

The lifetime of an LED has been standardized in the industry as the reduction of its luminous capacity to 70% of the initial output within 50,000 hours. It is also known as L70.

There are products that have better degradation than the standard, reaching L90 (90%) or even more.


kVA in LED lighting


The kVA indicates the real energy consumption (W) of our LED system. Being 1000VA equal to 1000W with a power factor (PF) of 1.


The kW represents the power of an electrical system, while the kVA indicates its apparent power.


If your LED system consumes 1000W with a PF = 0.6, the real power we will pay will be 1400W.

Watt’s Law

Free of electromag. rad.

Electromagnetic radiation is produced by oscillating electric waves which, by creating magnetic fields, affect other electronic equipment in the surrounding area.

The regulations clearly mark the levels that should not be exceeded in order not to affect people.  There are LED products that do not emit radiation and others that do. 

Led solutions can be passive and not emit electromagnetism. It is essential that they do not have coils, which are responsible for creating electrical pulses and pulsating frequencies.  

How electromagnetic radiation affects

Parallel Flex L6

This product emits electromagnetic radiation in compliance with low emission standards.

Parallel M9

This product does not emit electromagnetism, it has no coils or frequency oscillators.

Complies electromagnetic radiation standard

Electromagnetic radiation is a type of variable electromagnetic field, i.e. a combination of oscillating electric and magnetic fields, which propagate through space transporting energy from one place to another.

It is estimated that between 5 and 10% of the population is electrosensitive and among the most frequent symptoms are headaches, insomnia, irritability, depression or increased risk of cancer, according to the World Health Organization (WHO).

An institution of the stature of the Council of Europe recommends in its Resolution 1815 that the ALARA Principle be applied, which advises exposure to these waves to be as low as possible.

How electromagnetic radiation affects


Ecodesign or eco-design is a methodology that seeks to identify, from the moment a product or service is designed, the environmental impacts that may result from each of the phases of its life cycle, in order to try to reduce them as much as possible and always without impairing the final quality.

This life cycle thus includes different phases such as manufacturing, packaging, transport, distribution, use, repair, recycling and reuse.

Sustainability rating

Flicker Free!

In general terms, flicker is a visible and repetitive change in light intensity caused mostly by voltage fluctuations.

Flicker-Free technology is the technology that protects our eyesight from eyestrain by counteracting the level of flashing or flickering that many LED luminaires exhibit, whether in lighting, on computer monitors, or on a television screen.

Variable color temperature

White-tunable products allow a luminaire to change its color temperature in the range of 2,700ºK to 6,500ºK.

A dim-to-warm product attempts to reproduce the same type of warm lighting obtained from incandescent sources to promote intimate environments, often used in hospitality and restaurants.


The term dimmable in electricity comes from the word “dimmer” which in English refers to regulator or attenuator of intensity, that is to say that it serves to control the energy in one or several levels with the objective of managing and varying the intensity of the light emitted.

When we talk about dimmable products in the lighting sector, we refer to luminaires that can modify their light intensity.

Chromatic coordinates after 6,000h

Chromatic coordinates allow us to precisely identify the colorimetric characteristics of a light source.


The exact position of the coordinate is defined in X and Y within a graph defined at its ends by the basic RGB colors.


Over time (thousands of hours), these coordinates shift from their origin causing the LED to emit a color different from the original.

In professional LEDs this color variation is not noticeable to the human eye.

Chromatic coordinates

Chromatic coordinates allow us to precisely identify the colorimetric characteristics of a light source.


The exact position of the coordinate is defined in X and Y within a graph defined at its ends by the basic RGB colors.


In the brightest central part are defined the white tones ranging from 1,000ºK (yellowish white) to 20,000ºK (bluish white).


The MacAdam ellipses inform us about the level of color variation possible between these axes before the human eye can detect these color changes.

The distance between ellipses is measured in SDCM (Standard Deviation of Color Matching):

  • 1 SDCM: No color differences exist.
  • 2-4 SDCM: There is hardly any visible difference.
  • 5 or more SDCM: It is easily perceptible.


The sun is the most natural light we have and, consequently, it is the standard against which any light source is compared.

The CRI (Color Rendering Index) gives us information about the ability of a light source to faithfully reproduce the colors of an object, in relation to sunlight.

Therefore, the higher the CRI, the more natural and true to life the colors of the illuminated object will appear.

Actilum™ Spectrum

Actilum Spectrum is the part of our lighting laboratory that is responsible for creating tailor-made light spectra to suit the specific needs of each application.


The tailor-made light allows us to:


  • Accelerate plant growth and development.
  • Create more natural spaces prioritizing human health and well-being.
  • Improve the skin, eliminate stains, sterilize…
  • Highlight the textures of materials and fabrics.
  • Highlight white clothes and fluorescent inks.
  • Enhance the visual aspect of food.
    (fish, meat, fruits and vegetables)
  • Precisely adjust the lighting for professional make-up.
  • Reduce errors in machine vision systems.(laboratories and automated production)


And much much more.

Tailor-made spectra adapted for:









Light beam

The light beam is the set of those rays that share an origin and whose propagation develops without dispersion.

Multiple light rays emerge from the same point and make up a beam of light.

Tp Max.

The maximum temperature that LEDs can reach to work properly is about 40°C and in some cases, 65°C, depending on the manufacturer and model.


In the case of luminaires in general, they can reach higher temperatures in the heatsink up to 90°C while their electronics can have a temperature of between 60°C to 80°C.


High temperatures are the enemy of LEDs.

Relationship between lumen vs. temperature


The lifespan is the estimated duration that an object can have, correctly fulfilling the function for which it has been created. It is usually calculated in hours of life.


For certain technologies, such as LED, there are also other indicators of lifespan such as the point at which the luminous depreciation begins, which depends on:

– Deterioration due to aging.
– Accumulation of dust or dirt on optical parts
– Oxidation of the internal part of the luminaire
– Temperature variations
– Installation failures…

Example of lifespan of an electronic product

In electronic products, their service life depends on the electronic component with the least useful hours.

LED color

LED color temperature is a value that is measured in degrees Kelvin (K) and determines what we consider warm light tones and cool light tones.

When a black body is heated, it radiates a different type of light depending on the temperature, creating that warm or cool light that we understand as color temperature in LED luminaire.

LED lamps can be manufactured with a certain color temperature by combining different chemical compounds.

Direct light



Efficiency lm/W

Luminous efficiency (lm/w) is the ratio of the luminous flux produced by a light source to the electrical power consumed.


The energy lost in transforming electricity into light is transformed into heat.


Therefore, the higher the efficiency, the lower the energy wasted as heat and the higher the luminous flux.


Efficiency(lm/w)=Luminous flux(lm)/Power consumed(w)

Example of luminous efficacy (lm/W)


The lumen (lm) is the International System of Measurement unit for measuring luminous flux, a measure of the luminous power emitted by the source.

There is a concept that is often confused with “lumen” although it does not mean the same thing: it is “lux”, which is used to determine the amount of light projected on a surface.

There is a relationship between the two, since one lux is equal to one lumen per square meter.


The amount of energy or power demanded for a given period of time (kilowatt-hour or kWh).


The kilowatt-hour (kWh), equivalent to one thousand watt-hours, is generally used for billing household electricity consumption.


As of March 1, 2021, the European Union has revised and optimized the energy label by eliminating the categories “A+++, A++ and A+”, so that there is a common scale from A to G for all rescaled products.


For lighting products, the following rule is applied to determine their energy rating according to their lm/W efficiency

Energy rating according to consumption in lm/W


≥ 210 lm/W


From 185 to 210 lm/W


From 160 to 185 lm/W


From 135 to 160 lm/W


From  110 to 135 lm/W


From 85 to 110 lm/W


< 85 lm/W


Electrical voltage or potential difference (also called voltage) is a physical quantity that quantifies the difference in electrical potential between two points.


It can be measured with a voltmeter. Its unit in the International System of Units (SI) is the volt.



Measurement is a basic process of science that is based on comparing a selected unit of measurement with the object or phenomenon whose physical magnitude is to be measured, in order to find out how many times the unit is contained in that magnitude.


For Actilum, working to the millimeter implies valuing every detail, so that the results are the best. With the latest technology and dedication, we are able to provide solutions for all the measurements that each project requires.


Power factor

Power factor (PF) in LED lighting


In LED technology current drivers are used, these power supplies, in their conversion (ACDC) generate a phase difference between voltage (V) and current (A) according to their quality.


The PF values this phase difference on a scale from 0 to 1, with 1 being the perfect value with no phase difference. The lower the value the higher the energy consumption of the LED system as a whole.


Before submitting your inquiry you can see our commitment to your privacy.

Responsible: Actilum RGB, S.L.

Purpose of the collection and processing of personal data: to manage the request you make in this contact form.

Rights: you may exercise your rights of access, rectification, limitation and deletion of data in, as well as the right to file a complaint with a supervisory authority.

Additional information: in our privacy policy you will find additional information about the collection and use of your personal information. Including information on access, retention, rectification, deletion, security and other topics.



It is a new light measurement system created in 2015 where 99 color samples are taken into account, as opposed to the 8 used by the CRI standard.

This system measures:

  • Color fidelity / RF (Real Feel): similarity to reference light
  • Color gamut: saturation index
  • Shape of the gamut: hue and saturation graph

It is represented in a pie chart, where the black circle is the reference light (sunlight), the red circle represents the light to be measured.

If the red circle is inside the black circle it means that the colors are desaturated.

If the red circle is outside the black it means that the colors are oversaturated.



Activate or relax, the light that helps your vital rhythm

This spectrum is programmed throughout the hours of the day to provide a natural light sensation in accordance with our body’s circadian rhythm.



The electromagnetic spectrum is the energy distribution of all electromagnetic waves.


Sunlight is measured in nanometers (nm) with a spectrometer. The maximum visible light for the human eye ranges from 380 nm to 730 nm and perceives the highest luminous flux in the set of green, yellow and amber colors.

Below is ultraviolet (UV) radiation and above is infrared (IR) radiation.


Conventional LED light has a high peak in blue and lacks azure and red colors.


We offer customized spectra according to application:


HCLa & Plant

Lighting for humans (activation) and plants

Suitable for shared spaces between people and plants where work or activities are carried out (offices, gyms, educational centers…).



Highlight the fluorescent inks (Red-Blue)

Spectrum for highlighting fluorescent inks in printing as well as on objects and surfaces.



Enhances germination and sprout density

Section under development, if you need more information please contact us.



Improves germination and root density

It accelerates germination and prioritizes rapid root growth and the first stage of stems and green leaf.


Green leaf

Increased density and thickness of stems and leaves

Section under development, if you need more information please contact us.


CBD Pharma

Improves organoleptic properties (Terpenes)

Section under development, if you need more information please contact us.



Increases fruit production and conservation

Section under development, if you need more information please contact us.



The only azure light that cares about your health.

With this light spectrum you can control the activation or relaxation of people through the suppression (activation) or secretion (relaxation) of the hormone melatonin, which controls the circadian rhythm.

Tailor-made spectra according to application

*Request information about our spectra, we respond within 24/36H

High Efficiency

In order to reduce energy consumption without losing luminosity, Actilum has designed the High Efficiency technology.


Our systems are characterized by their simplicity and robustness, they are also 40% more efficient than conventional LED systems and use 30% less electronic components.


We have increased the amount of copper in their circuits to reduce voltage drops and offer a longer lifespan than the rest.


High Efficiency means 40% less heat, which translates into 40% less energy consumption for the same luminous flux.

High Efficiency Systems vs Conventional



High informative visual impact

Lighting with low color rendering index and high visual impact to highlight indications, signs, information, prices…



Enhancement of details in materials and surfaces

Balanced spectrum throughout the range with very high color rendering. The resulting light is as similar as possible to the sun, it enhances the color and texture of materials.



Increased definition in metallic and plastic materials

Spectrum with deep blue peak to accentuate the metallic and shiny effect of surfaces and products.


Clothing & Product

Color fidelity + shape definition

High color rendering spectra (90:50) and visual comfort.

Clothing – 3K

Clothing – 4K

Clothing – 5K



Vibrant and saturated colors

This spectrum is designed to enhance the color and freshness of fruits and vegetables, making them look more appetizing and fresh.



Increased sensation of freshness

Sección en desarrollo, si necesitas más información ponte en contacto con nosotros.



Red pigment enhancement

Under these spectra, the meat has a much fresh appearance, as well as a more attractive color for sale.

Meat – 5K


Red meat – 5K


General & Plants

General illumination of spaces with live plants

This special architectural mix provides high CRI lighting while taking into account plant growth.


Solar Spectrum

The closest light to sunlight

High color rendering spectrum and visual comfort. Ideal for indoor lighting where you want to achieve a natural effect as close as possible to sunlight.

Combines several LEDs with the latest SOLAR 5K technology.

  • Architecture
  • Cosmetics
  • Artificial vision
  • Industrial use (processes)
  • HCL (activation)
  • Horticulture (vegetative)
espectro solar


Correlated Color Temperature

Adjustable spectrum that allows us to balance the color temperature in our system from 2,700ºK to 6,500ºK.

Christmas holidays

We are closed on 25 and 26 December and from 1 to 7 January for maintenance.

During those days, we will try to resolve your commercial enquiries by e-mail as soon as possible.

The Actilum team wishes you Happy Holidays!