RIDI Group acquire rights to Selux Interior range

There’s a lot happening at RIDI Group, not the least of which is the acquisition of the entire Selux Interior range. Selux announced last year that they would be halting production of interior fixtures, but that wasn’t to be the end of the story for this admired range of luminaires.  



There is a close relationship between Manfred Diez, MD of RIDI and the Bansbach family, founders of Selux, who still have influence in the company since it was taken over by CMP Capital Management last year. When it was announced that the Selux interior range was to be discontinued, the Diez family were keen to continue their long established respect for the innovative SELUX Interior products by developing and integrating their manufacture and on-going development into the RIDI Group factories.

RIDI Group announced in August 2020 that many of the architectural product lines will appear under the Spectral brand, making a seamless fit within the Spectral stable.
RIDI has made it clear that Selux customers will see continuity in the product specification.
The Rail and Utility products will appear under the RIDI brand.

RIDI Group was founded in 1952 by Richard Diez, at which time the company was concentrating on gas-electric conversions of lighting fixtures from their base in Jungingen, a few kilometres south of Stuttgart. Industrial growth during the post-war years meant that the company was able to grow, developing from domestic fixtures to a comprehensive range of technical luminaires in the 1970s.

Manfred Diez

The link between RIDI and Selux came in the 80s when Manfred Diez completed his degree in electrotechnology at the University of Berlin. It was at that time that he met the Bansbach family of Selux. Dipl.-Ing Manfred Diez became CEO of RIDI in 1989, becoming sole MD in

1998. And it was from there that the company product range was expanded to include recessed and surface-mount downlights, keeping abreast of the changing demands of the lighting specification market in Europe.


For many UK lighters, the RIDI name was first seen at the Hannover Fair of the ‘70s and ‘80s.

The strength behind the RIDI product comes from the company embracing state-of-the-art technology, both in terms of hardware and in-house design skills. Advanced LED manufacturing processes has seen the incoming Selux products benefit from increased performance and improved efficiency.

The headline ranges to join the Spectral catalogue:


Purelight provides good eye comfort and reduced glare, providing excellent task illumination that is so very important for our well-being. Purelight produces a natural, soft and diffuse, light that blends effortlessly with the needs of the modern commercial interior.

For information on PURELIGHT


M Series

Continuous linear systems need to be flexible in specification and simple to install. The M Series fulfils all of those requirements. It is available in four extrusion profiles, with standard lengths available as well as bespoke solutions for project specifications. Each extrusion can be mounted as surface – pendant – recessed or recessed trimless and there is a wide variety of optical systems to ensure that there is an option for every application.

For information on the M SERIES


And joining the RIDI range:


Built to a modular design, Survivor is a robust product that offers premium quality vandal and shock resistance. It is ideal for public spaces in general and for the transport sector in particular. It is used by rail and transport networks throughout the world, including  Network Rail, London Underground, Docklands Light Railway in the UK and rail systems in Germany, Sweden and Australia.

For information on SURVIVOR


M series at the Porsche Museum, Stuttgart

And in other news:

Technology and markets are changing faster and faster, and technological change impacts all areas of the company. To sustain and strengthen its project and key account business, RIDI Group has appointed Dietmar Zembrot as Technical Director of the RIDI Group on July 1st.

Coming from Trilux Group, Mr. Zembrot is a lighting technician and has many years of professional experience in various international lighting companies. “I look forward to helping to shape the RIDI Group’s enthusiasm for innovation and flexibility in the direction of customers in this increasingly complex lighting world.”

Manfred Diez: “I am glad to have found such an experienced colleague from the lighting industry for us, who also fits into our medium-sized corporate culture.”

Dietmar Zembrot with Manfred Diez

A new way to do business – and win specifications

RIDI Group has approached the issues raised by Covid-19 and the difficulty of face-to-face meetings with imagination and enthusiasm. The UK team has developed a four-pronged approach to help meet the needs of designers and specifiers:

  1. The RIDI website has gone through a complete re-design. Product information from all of the RIDI companies can be found at one address: ridi-group.co.uk
  2. A series of online  podcasts are being produced to help describe and explain product features. As these become available they will be featured on the RIDI website and at The Light Review.
  3. The Spectral Show Space in Old Street, London is still available for viewing, by socially-distanced appointment.
  4. The best way to see how effective a luminaire is – is to see it in action. RIDI will be offering specially arranged visits to RIDI installations in the UK to demonstrate the quality of the products.

And, once we’re all able to travel again, there is always The RIDI Group Campus at the Jungingen HQ in Germany. The Campus offers seminars, conferences, web meetings and workshops. There is also a large exhibition space nearby to demonstrate fixtures.




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