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LEDVANCE wins first VDE HCL certificate

LEDVANCE has become the first to be awarded the HCL certificate with the best possible quality award (3/3 stars) from the independent VDE Testing and Certification Institute.

The award was made for its new and advanced BIOLUX HCL system and it is the first time that a company has qualitatively fulfilled all existing requirements, norms and standards for an HCL system.

“The collaboration with the technical experts from LEDVANCE has been excellent”, says Dragana Zdravkovic-Stojanovic, technical expert for luminaires at VDE Institute. “Our criteria for being awarded with 3 stars were by no means easy to implement. I am looking forward very much to further joint projects.”

LEDVANCE’s HCL system positively supports the human biological day-night-rhythm, increases well-being and performance during the day and improves the quality of sleep at night.

The evaluation by the VDE Institute was based on various criteria regarding light quality, correct simulation of the course of daylight, energy and cost efficiency, safety, ease of installation and commissioning, usability and compliance with national, EU and global norms and standards.

The VDE mark is synonymous with safety and quality in electrical devices, components and systems. The independent test engineers carry out product, quality and safety tests on more than 100,000 devices per year before the VDE Institute awards the test mark.

The VDE Institute has now developed a new standardised catalogue of test-criteria to evaluate HCL systems with regard to quality, safety, performance and usability. Compliance with these criteria is confirmed by a three-stage certificate.


The LEDVANCE BIOLUX HCL system consists of wirelessly connected components. The intelligent BIOLUX control unit ensures that the corresponding BIOLUX LED luminaires simulate the natural course of daylight in terms of light colour and intensity.

Unique to the system is the possibility of manually adjusting light to different situations using five predefined light modes. While the ‘natural’ mode simulates the natural course of daylight, the ‘boost’ and ‘focus’modes support concentration and productivity. ‘Relax’ provides relaxing light during breaks and with ‘create’ brainstorming sessions are encouraged.

The built-in safety mechanism has been particularly positively evaluated by the VDE Institute: the five different light modes always follow the curve of natural daylight and thus ensure that the effects on the biorhythm are positive at all times.

This makes the BIOLUX HCL system particularly suitable for offices, meeting rooms, hospitals, doctors’ surgeries as well as elder care and nursing homes.


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