HCL-Systeme können zum Beispiel per App eingestellt werden
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2020-02-24 Testing + Certification

Lighting - Testing and Certification at the VDE Institute

The market for lighting products is complex. Nothing seems impossible ever since the introduction of LEDs. But what makes quality products stand out and how do you recognize them? What does quality actually mean?

Contact

Christian Lütkemeier

For consumers, quality means that their products are comprehensively safe. In addition, quality products stand out due to a long service life, high durability and electromagnetic compatibility. With our certificates and marks, manufacturers demonstrate to their customers the reliable quality of their products , successfully setting them apart from the competition.

At the same time, it is difficult to penetrate the multitude of standards and guidelines for placing existing and new products on the market in a way that meet market requirements. As an internationally recognized service provider, we guide you through the jungle of regulations and help you bring your product to market in a safe and serviceable manner.

Your partner for lighting tests

light bulb in hand

Human Centric Lighting (HCL) - Natural light dynamics

Light has a great effect on your well-being. The human biorhythm follows the lighting situations to which we are exposed during the course of the day. New lighting trends will seize on this effect on the biorhythm. The aim of our new and previously unique service was to create a uniform procedure for testing lamps and luminaires that are equipped with a system for HCL (Human Centric Lighting).

light bulb in hand

Light has a great effect on your well-being. The human biorhythm follows the lighting situations to which we are exposed during the course of the day. New lighting trends will seize on this effect on the biorhythm. The aim of our new and previously unique service was to create a uniform procedure for testing lamps and luminaires that are equipped with a system for HCL (Human Centric Lighting).

Our VDE test specification

Our VDE test specification covers all possible areas of application for lamps and luminaires with HCL control indoors - in schools, hospitals, nursing homes, offices, factories and at home. It is important to mention that different areas of application require different settings. Higher illuminance and cold light are required in schools and offices in order to increase the melanopic effect in the human body and thus the performance in the morning and at noon. In contrast, warm white light with high illuminance and low illuminance in the evening hours is used in hospitals and nursing homes, because here the well-being of the patient is paramount. In many companies and factories, the special case of rotating three-shift operation has to be considered. Here the disturbance of the melanopic effect must be kept as low as possible. This can be achieved by putting together daylight-based lighting with a high proportion of blue. During the night shift, lighting with a low melanopic effect should be realized.

The HCL criteria

The HCL criteria are verified by CIE S 026, DIN SPEC 5031-100 and other standards. The following test criteria are evaluated in this test:

  1. Checking the lighting properties such as luminous efficacy, dimming range, color temperature range, color rendering index, color consistency, homogeneity, psychological glare, ratio of melanopic to photopic luminous flux, flicker, stroboscopic effect, energy efficiency class and photobiological safety.
  2. Checking the light dynamics such as the step size of the change in brightness and color, the accuracy of the light dynamics, the selection of the light scenes and the parameters from the ASTA / DGUV regulation.
  3. Testing the usability of the operation according to DIN EN ISO 9241-11.


VDE special certificate Human Centric Lighting

The inspection of HCL lamps and luminaires is awarded with a special certificate. The logo visually shows that human centric lighting focuses on people and their wellbeing. The star point system is also shown on the logo, with one star being filled in for each level reached. If all three stars are shown dark, it is a very well rated HCL system.

For the test we need:

  • Safety certification according to IEC60598
  • 10 lights
  • 3 Control Units
  • Data sheets
  • Nameplate(s)


We support manufacturers and retailers of HCL systems

The aim of current research and standardization is to transfer the properties and advantages of natural daylight to indoor lighting. It is important that both the light color and the illuminance adapt to the circadian rhythm during the day. In the morning, the body is supported by cold white light with high illuminance when waking up and working. From afternoon to evening, the lighting then turns more and more to warm white and the illuminance drops. This prepares the recovery and sleep phase - just as it corresponds to the natural biorhythm.

We support manufacturers  and retailers of HCL systems in presenting the advantages of their product to the customer at a glance. In this way, consumers can be sure that the HCL system offered can really reproduce the natural spectra.

Contact

Stefan Wingenfeld
VDE Special Certificate Human Centric Lighting
hanging light bulbs

Smart lighting

Smart lighting makes light adapt to the user’s life and needs in an energy-efficient manner. For instance, emotions can be influenced by controlling the light color.

hanging light bulbs

Smart lighting makes light adapt to the user’s life and needs in an energy-efficient manner. For instance, emotions can be influenced by controlling the light color.

For market players, it means the following: New possibilities, but also new challenges with respect to IT security, interoperability, functionality, serviceability, service life and performance.

Symbol for renewable energy

Sustainable lighting

Energy is a scarce good and as such, protecting national resources is our mutual task, which is why sustainability plays an increasingly important role when purchasing electric products.

Symbol for renewable energy

Energy is a scarce good and as such, protecting national resources is our mutual task, which is why sustainability plays an increasingly important role when purchasing electric products.

We help you demonstrate that sustainability means more for your products and for your company, e.g. via energy labels that underscore your products’ energy efficiency in a promotionally effective manner. Furthermore, we offer you holistic balancing of your products with a focus on the carbon footprint and many other solutions that go beyond the issues of safety and electromagnetic compatibility (EMC). 

Additional information on our sustainability and ecodesign services

LED tubes

Optimum - performance of light

Performance became a crucial differentiating factor for quality products, particularly with the introduction of LEDs. During the course of technological change, it was all but difficult for consumers to compare the performance of products.

LED tubes

Performance became a crucial differentiating factor for quality products, particularly with the introduction of LEDs. During the course of technological change, it was all but difficult for consumers to compare the performance of products.

In our modern lighting laboratory, we have the know-how and the necessary equipment for testing products and highlighting high-performance products. We test the biological effect of light and determine its spectral properties. And we do so flexibly, quickly and around the globe.

Light measurement using the goniophotometer

Photometry and spectrometry – a must for any lighting manufacturer

Photometry and spectrometry are becoming increasingly important for the lighting industry. Transparently evaluating color reproduction and light distribution is usually indispensable for sales.

Light measurement using the goniophotometer

Photometry and spectrometry are becoming increasingly important for the lighting industry. Transparently evaluating color reproduction and light distribution is usually indispensable for sales.

To meet the demand for independent testing that covers all aspects of the performance characteristics of lamps and lights, the VDE Institute operates a test center for photometry and spectrometry. The scope of services ranges from luminous flux measurement, the color rendering index, spectral value percentages and color temperature to evaluating the photobiological safety, logging the light distribution curve and spatially resolved measurements of spectral distributions.

With our new test basis, we are able to issue a VDE special certificate for the rating of the flicker behavior

Light flicker and stroboscopic effects

In addition to the known variables by which light is assessed, the importance of flicker behavior in the daily interaction with the overall topic of LED light continues to increase when it comes to LED lighting.

With our new test basis, we are able to issue a VDE special certificate for the rating of the flicker behavior

In addition to the known variables by which light is assessed, the importance of flicker behavior in the daily interaction with the overall topic of LED light continues to increase when it comes to LED lighting.

In addition, light is increasingly being assessed and evaluated in terms of its potential impact on people's well-being, for example in the field of HCL (Human Centric Lighting). The flicker properties of illumination can thus also influence well-being. For the assessment of the flicker behavior and the stroboscopic effect, we have developed a test basis with an associated certification option.

Everyone can benefit from the VDE’s Properties marks for lighting

hanging shining light bulbs
stockphoto-graf / Fotolia
  • VDE Quality Tested Mark represents excellent products with the highest quality and reliability on the market. It includes tests according to safety, EMC and service standards along with ErP provisions. It has the highest reputation worldwide.
  • The VDE Properties Mark , “Photometric Properties”, demonstrates to the user the transparency and reliability of product data.
  • The VDE Properties Mark, “Tested Light Distribution”, represents trustworthy data for the lighting planner. It provides information on the luminous intensity distribution, luminous flux and beam angle.
  • The VDE Properties Mark, “ErP Compliance”, demonstrates that your product is in conformity with the applicable ErP (Energy-Related Products) regulations. It deals with designing energy-related products in an environmentally responsible manner.

We test and certify your products

Light measurement using the goniophotometer
VDE

The VDE Institute offers product testing and certification specifically for lamps and lights, from components to the complete lighting system:

  • Additional lighting components
  • Converters for halogen lamps 
  • Energy-saving lamps 
  • Lamps
  • Lamps for emergency lighting systems 
  • Lamps for street lighting
  • Lamp sockets 
  • LED lamps 
  • LED modules and operating Equipment 
  • LED tubes 
  • Magnetic or electronic lighting ballasts 
  • Rail Systems 

Testing according to Zhaga specifications

Standardizing interfaces for LED Light Engines (LLE) is an objective of the Zhaga consortium, an association of companies in the lighting industry. The basic idea is to live up to the quick innovation and development cycles, make the wide variety of different LED modules combinable with each other and thus, continue to drive forward LED technology.

LED light engines consist of at least one LED module, which can be combined with a control gear, if necessary. The goal is to standardize the LED light engines, e.g. the mechanical, thermal, electric, and photometric interfaces, to make them exchangeable. It should be implemented both for newly developed, efficient generations and for different manufacturer products. Zhaga develops specifications, called books, to achieve this standardization, and member companies can voluntarily use these specifications.  However, the goal is to carry over the books into the international IEC standards.

Zhaga has developed a proprietary testing and certification process to test products for their conformity with these specifications. After successful testing, a Logo License Administrator (LLA) issues member companies of the Zhaga consortium a certificate, which grants the right to display the Zhaga logo. It requires the appropriate licensing agreement with the LLA and being a Zhaga member company. Furthermore, the rules stipulate that only authorized test laboratories that have signed a “Testing Center Agreement” may perform the tests. As an authorized test laboratory, the VDE Institute can therefore perform any tests on LED products according to the corresponding Zhaga books.

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