Light focused on you

Lighting focused on you

The schedule of the day has a significant impact on our mood and health, and different colors of light play a key role in regulating our biological rhythm. Light with a higher color temperature in the morning stimulates our activity, while a warmer color in the evening prepares the body for rest and sleep. Therefore, adjusting the lighting in the home to the cycle of the day can significantly affect our energy, mood and sleep quality.


What is Human-Centric Lighting?

Human-centered lighting is an approach to lighting design that considers the needs and well-being of people. Includes adjusting the intensity, color temperature and direction of the light according to the changing needs of users, such such as time of day, task, or situation. HCL’s main goal is to create optimal lighting conditions that promote human health, comfort and productivity.

Human-Centric Lighting is an innovative lighting design strategy that emphasizes the needs and well-being of people. By adjusting the intensity, color temperature and direction of the light to the changing needs of users, HCL brings numerous benefits, including improved health, productivity and comfort. It is worth considering implementing this strategy in different types of spaces to increase the quality of life and efficiency of people.

There are many strategies that can be used with Human-Centric Lighting to achieve the desired results. Here are some of the most important:

Variable lighting: HCL systems allow you to adjust the intensity of light throughout the day, for example, increasing the brightness of the morning light and decreasing it in the evening. This helps adjust lighting to a person’s biological rhythm. Color temperature control: Lighting can be adjusted to natural changes in light colors throughout the day, which affects our mood and energy levels. Warmer morning light can improve our activity, while cooler evening light can help us relax.

Automation: HCL systems can be programmed to automatically adjust lighting based on motion sensors, intensity of sunlight or other factors. This saves energy and ensures optimal lighting conditions at any given time.

Personalization: In some HCL applications, you can customize the lighting to users’ individual preferences, which can improve their comfort and efficiency.

Numerous benefits

Improve health and well-being: Tailored lighting regulates biological rhythms, improving sleep, increasing energy and quality of life.

Increased productivity: Optimal lighting increases employee efficiency, improving concentration and focus.

Energy and financial savings: Automatic lighting control contributes to savings in electricity and financial costs associated with lighting.

Improving comfort in public spaces: Human-Centric Lighting enhances the appeal of places such as stores, restaurants and museums, attracting customers and visitors.

Did you know that…

Human Centric Lighting

Lighting design in the Human Centric Lighting (HCL) approach is more complicated than traditional lighting, because it must take into account a range of biological, behavioral and environmental factors.

So why is it so important to implement healthy habits related to technology use? How can we minimize the potential negative effects while enjoying the many advantages of technology? Here are some proven ways:

Understanding the diurnal rhythm


The body operates on a diurnal rhythm that affects sleep, appetite, energy and mood. HCL lighting should follow this rhythm, such as brighter and white light during the day, and warmer and softer light in the evening, to support a healthy living rhythm.



HCL lighting design should also take into account sustainability aspects. This means choosing energy-efficient light sources, such as LEDs, and As well as minimizing light emissions into the environment, which can disrupt the life of wildlife.

Mimicking natural light


Studies show that natural light is beneficial to human well-being and productivity. HCL lighting should mimic its variability, using different light sources to create the optimal lighting effect.

Health and safety


HCL lighting must protect the health and safety of users, by minimizing glare, reflections and flicker, and ensure the safety in areas accessible to children.



Everyone has their own needs for lighting depending on age, health, lifestyle and tasks. HCL lighting should be flexible, such as adjustable in light intensity, direction and color.

Benefits of smart lighting

Light in the color of the sun’s rays adds energy.

Smart lighting has numerous practical applications:

Safety and security: Prevent darkness in your home by using random turning on lights while you are away and motion sensors to automatically illuminate outdoor spaces.

Convenience: Automatic nightlight off and scheduling make it easy to manage lighting without the need for manual control.

Health and well-being: The gradual awakening of light and synchronization with the solar cycle promote good mood and energize, and adjust the color of the lights for creative notifications, such as informing you of rain in blue or red.

Create your own

Daily cycle

Human Centric Lighting (HCL) relies heavily on mimicking the the natural rhythm of sunlight, adjusting the intensity, color and distribution of light throughout the day. Below we propose an example of a daily lighting cycle that can be based on HCL principles:

Of course, the following schedule is exemplary and should be tailored to the individual needs, lifestyle and daily rhythm of the users. It is also important to consider natural sunlight and how it affects indoor lighting.

Morning 6:00 am - 9:00 am

Gradually increase the intensity of light, transition from warm to cooler color, assisting the transition from sleep to wakefulness.

Day 9:00 am - 5:00 pm

Bright, cool light (white or blue) to promote alertness and productivity, minimizing shadows and glare.

Evening 5:00 pm - 8:00 pm

Gradually reduce brightness and move toward warmer colors, for better comfort and to avoid glare.

Night 8:00 pm - 6:00 am

Minimal light so as not to disturb sleep, with the option of soft, warm lighting if needed.

Check out

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How do smart light bulbs work?

Smart lighting, also known as smart bulbs or smart lighting systems, is a simple and affordable way to bring smart home technology into your environment. They are easy to install, affordable and intuitive to use.

Available in black and white, the LETTA adjustable desk lamp is made of soft touch material.