Simple changes led to 30% increase in performance

Frandsen and Ingemann enjoy a close cooperation around quality assuring and optimizing the performance of Frandsen’s luminaires. In one case, a few adjustments of the optical lighting solution led to a 30% increase in the luminaire’s performance.

Frandsen's Satellite luminarie

Frandsen’s Satellite luminaire.

Many light manufacturers are primarily focused on the design and aesthetics of their lamps, but when it comes to designing the ideal optical lighting solution, it can be valuable to seek help from an external partner.

“Ingemann’s advice on how to optimize a luminaire is very valuable for us,” says Andreas Hammershøj Olesen, Manager in Product Development at Frandsen.

Recently, Frandsen was bidding on the development of custom-made linear luminaires for an office building and was up against a competitor with a more technical design.

“We had difficulties in meeting the technical requirements, but Ingemann advised us to add a reflector and change the diffusor. By implementing these changes, we managed to increase the luminaire’s performance by 30%,” explains Andreas Hammershøj Olesen

A few simple changes that increased the luminaire’s performance substantially.

“Prior to our cooperation, we simply called a plastics producer, but with you onboard we have gotten access to specialist knowledge about optical lighting solutions. You are always up to date with the latest materials and solutions, and it’s highly appreciated,” says Andreas Hammershøj Olesen.

Frandsen’s Hitchcock luminaire. 

Frandsen's Hitchcock luminaire

Light measurements are partly outsourced to Ingemann
Frandsen doesn’t have its own full range test facilities to validate, and quality assure the performance of their luminaires, so they use Ingemann for this service.

“Ingemann is very agile and flexible to cooperate with and we have experienced that within a few weeks, you can test the whole assortment. It’s much cheaper for us to use your service than establish our own test facilities,” says Andreas Hammershøj Olesen.

Recently, Ingemann measured 28 of Frandsen’s luminaires. Often the light measurements simply sustain the expected performance, but sometimes the light measurements reveal lower performance than expected. Lower performance than expected is often due to the electrical components, the optical solution or LEDs that are less effective than expected.

“A simple solution would be to add a more powerful light source and increase the power consumption, but with the increased focus on energy efficiency, we have become even more conscious about finding the most sustainable solution,” emphasizes Andreas Hammershøj Olesen.

For the typical consumer, it’s almost impossible to understand whether a luminaire is energy-efficient or not, and many consumers are more focused on the design, but energy labels provide good guidance.

“Energy labels have been around for a long time, but they continue to be rescaled and what would be labelled as A++ a couple of years ago, might only be labelled as C today. It forces us to be on our toes with the development,” finishes Andreas Hammershøj Olesen.

Therefore, he finds Ingemann’s focus on sustainable design highly interesting as it has become more important to seek inspiration on these issues.


Frandsen both designs luminaires in own brand and for contract- and retail customers.

Frandsen’s own product development activities take place in Denmark with production in Asia and Europe. They take care of the full development process and has a high frequency of new designs, around 300 new designs per year.

In addition, they have contract customers for example interior decorators who order tailor-made and fast designs in smaller batches. Finally, they produce luminaires for retail customers like home stores.

For more information about FRANDSEN.