About heilys®

We are designers, engineers, scientists, and lighting technicians.

Our mission is to research, develop, and design lighting solutions that make people healthier, more energetic, and happier.

The Founding Story

Yike Pan, lighting scientist and founder of heilys®

"After years as an engineer and lighting designer, the moment came that changed everything: a sunny spring day. After hours of intensive lighting planning, I stepped outside from a perfectly lit building – and felt the warmth and energy of the real sun. That's when I realized: No artificial light can replace what nature gives us. But if we can't change our lifestyle immediately, we need a special light to complement it – heilys ® ."


I've worked with light for over 20 years—from electrical engineering to architectural lighting to international projects for hotels, airports, and offices. My goal was always to make artificial light as perfect as possible. But this very perfection revealed a problem: The better indoor light became, the more we humans spent time indoors—and the less we got the light our bodies truly need.


In my research, I discovered that light isn't just a design element, but an essential nutrient. Certain wavelengths, especially in the red and near-infrared range, can stimulate our cells to produce more energy. This influences regeneration, metabolism, and well-being – on a level we can't see but can feel.


With heilys, I've built a bridge between scientific precision and practical everyday life. Every product is developed to work with technical precision – from the wavelength and optics to the safe, durable workmanship. Because only precise light can trigger in the body what nature has shown us.
My vision: a future in which light is seen as a natural component of health – as natural as clean water or fresh air.

Background & Experience

Research expertise behind heilys

Our scientific advisory board brings together expertise from biophotonics, preventive medicine, and life sciences - and supports heilys in the further development of innovative lighting solutions for greater well-being.

Expert in biophotonics and preventive medicine

Dr. Eduard Van Wijk

Dr. Van Wijk has a background in cognitive and biological psychology. He worked as a senior researcher at the International Institute of Biophysics and subsequently conducted research in analytical biosciences at Leiden University .

Today he is responsible for the field of biophotonics at MELUNA Research in relation to health, lifestyle and disease.

Specialist in spectroscopy and biophotonic measurement technologies

Dr. Yu Yan

Dr. Yan studied biology at Hangzhou University in China and received his doctorate from the University of Mainz in Germany. After completing his doctorate, he dedicated himself to biophoton research and biophotonics .

Since 2009, he has been part of MELUNA Research and specializes in NIR, Raman, and UV/VIS spectroscopy . As a senior researcher, he plays a key role in the development of new measurement and analysis technologies .

What doctors and therapists say about heilys®


Certified and developed in Germany.

Our products were developed and tested by our team in Germany. Production meets certified quality and safety standards: CE, RoHS, WEEE.

The heilys® process

Every heilys product embodies our core concept: integrating natural light into everyday life to activate the body's own healing powers through increased cellular energy and improved metabolism.

Our process in 3 steps:

PHOTO-2019-12-07-16-08-11_2.jpg

1| Research & Development

Our work begins in research. heilys® cooperates with renowned European universities and laboratories and incorporates the latest findings in light biology and photobiomodulation into product development. This is not just about theory: we test different wavelengths, beam angles, and intensities using state-of-the-art measurement technology and use this to develop solutions based on studies and practical experience. This ensures that every heilys® device generates light that can have an effect at the cellular level—while remaining pleasant and suitable for everyday use.

photo_2025-03-28_09-46-32.jpg

2| Precise manufacturing

Our devices are manufactured with the utmost care. Engineers from our team supervise production on site at our partner factories, check every component, and ensure that all materials are durable, safe, and sustainable. From the selection of flicker-free LEDs with precisely tuned wavelengths to optics with optimized beam angles, sturdy housings, and user-friendly operation—every detail is carefully chosen. This is the only way we can develop products that are both technically advanced and reliable in everyday use.

Siegel.jpg

3| Quality control

Before a heilys® device leaves our premises, it undergoes a multi-stage testing process. Every single product is tested for electrical safety, performance values, and visual parameters—not just random samples. Our quality inspectors compare the results with internal design guidelines that are stricter than many common standards. The result: devices that deliver stable performance for years and whose reliability we can guarantee with a 3-year warranty.