Successful cooperation leads to excellent results

RIDI Leuchten and Ingeman Components have successfully cooperated on several projects. It has resulted in enhanced technical performance, increased productivity and lower cost for some of RIDI’s luminaires. Not to mention a 20% increase in energy-efficiency.

RIDI's F-EDGE-2 luminaire in an office in Karlsruhe

Installation of RIDI’s F-EDGE2 luminaires in an office in Karlsruhe in Germany.

What started as pure purchasing of microprisms has turned into an effective collaboration between RIDI and Ingemann. The first significant cooperation came into play when RIDI had an issue with a supplier with very strict requirements to their deliveries.

“We sent an example of our F-EDGE2 luminaire to Ingemann to get their suggestion to an improvement project. They managed to widen the light distribution without compromising the performance and cut the cost by 20%,” tells Dirk Mania, Head of Technical Office.

At that point in time, RIDI bought separate components from another supplier for their F-EDGE2 luminaire, but Ingemann’s one-stop solution proved to be a better solution.

“Now, we get the complete optical solution delivered in foil. Instead of dealing with several item numbers in our logistics, it’s much easier and more cost-efficient for us to get a preassembled package that’s ready for assembling,” says Dirk Mania.

The optical lighting solution for the F-EDGE2 luminaire is delivered in preassembled kits.

RIDI's F-EDGE-2 luminaire

Energy-efficiency can be increased by 20%

The two companies have regular Teams-meetings where new optimisation projects are discussed.

“One of the advantages of cooperating with Ingemann is the fast responses and good service. I think they have measured 15-20 of our luminaires and spent a lot of time on us. It’s very valuable for us and we are very satisfied with the cooperation,” says Dirk Mania.

Currently, the parties are in a dialogue about an optimization of another product from RIDI’s portfolio of luminaires.

“Ingemann conducted a light measurement of this product and suggested a change of the reflector and the diffusor. A few adjustments that will increase output from 117 to 140 lumen/Watt which is a 20% increase of the luminaire’s energy-efficiency,” explains Dirk Mania.

In general, focus on energy-efficiency is increasing in Germany where the Government offers funding to lighting manufacturers who invest in solutions that increase the light output to more than 120 lumen/Watt. Not only, do the Government reward sustainable initiatives. Dirk Mania also experiences an increasing interest for more sustainable and cost-efficient solutions from the end-customers.


Established in Germany in 1952 as an electrical installer. Operating from a small building opposite its current site in Jungingen, Southern Germany, it produced its first kitchen light fittings back in 1957. At that time site working was seasonal because of harsh winters in the Swabian Alps and Ricard Diez (the founder RI-DI) switched to making domestic luminaires in the winter months.

Today, RIDI Lighting is one of the major brands in European lighting with more than 600 employees and a reputation as a family-oriented company who values personal service. In recent years, the RIDI Group has grown dynamically. Not least due to the acquisition of Spectral and the interior portfolio from Selux.

RIDI has always focused on engineering values and pride themselves with over 90% of their products are being manufactured in Germany at one of their three major plants:

  • Jungingen (Head quarter)
    Located near Stuttgart, this facility encompasses all the technical facilities, testing and a production area of around 35,000 square metres.

  • Zeuthen
    Located near Berlin.

  • Rellingen
    Specific product ranges are produced in this facility near Hamburg.

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