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    Joint development of optimal light recipe for snack cucumbers convinced Kwekerij Verhoeven to start growing with full LED from Signify  

    November 4, 2021
    • Trials at Kwekerij Verhoeven result in optimal light recipe for snack cucumbers 
    • Philips GreenPower LED toplighting compact (TLC) enables efficient, year-round cultivation of snack cucumbers
    • GrowWise control systems provides full control over the light intensity and helps to optimize the electricity management of the entire company


    Eindhoven, the Netherlands – Signify (Euronext: LIGHT), world leader in lighting, has together with Kwekerij Verhoeven developed a light recipe especially for the cultivation of snack cucumbers, resulting in the grower having decided that it is time to make the switch to a full LED installation this autumn. Signify will deliver a Philips GreenPower LED toplighting compact installation with the GrowWise control system, providing Ad Verhoeven high-quality lighting and full automated control over the growth cycle and his growing facility in Prinsenbeek, the Netherlands. The new light installation will illuminate 2,1 ha of snack cucumbers. The first phase has already been installed. The second phase will follow this autumn.

    Ad Verhoeven is a true pioneer. He was the first grower to cultivate snack cucumbers years ago and was the first cucumber grower in the world to install a full LED light installation in a part of his company in 2017. “At the time, nobody had any experience with using LEDs to grow cucumbers, not even research facilities,” Verhoeven said looking back. “However, we had faith that we could grow cucumbers under LED. It turned out that snack cucumbers require a very specific light recipe to ensure full production in the darkest months.”

    LED light installation

    Looking for the optimum together

    After an elaborate evaluation the grower and Signify came to the conclusion that further improvements should be possible. That's why in 2017 together they started exploring the optimal light recipe for snack cucumbers. For three years, account manager Frank van Holsteijn and plant specialist Erik Stappers carried out extensive research in a specially designed trial-greenhouse at the company's premises in Prinsenbeek. “This was very educational for both parties,” according to Stappers. “Many experiments were done, and we learned a lot about the effects of different recipes and light intensities, measuring numerous parameters meticulously. It was a matter of time before the right combination came to the surface.”

    Top quality year-round

    Key to the specific light recipe for snack cucumbers is the addition of a hint of green light and far-red light, in addition to the combination of red and blue light that is typically used. "The latter allows crops to stretch further so their leaves can catch more light," said Verhoeven. “Thanks to this improved build-up of the crop winter production is clearly higher and the quality of the fruit is super. Now we can realize a constant production of top quality year-round. I am very pleased with the way in which Signify has handled this. We worked together very constructively, and the result is impressive.”

    Higher efficiency

    On top of adjusting the composition of the light, Verhoeven can realize a higher light level while keeping his electricity usage the same as before. Additionally, connecting the lights to the Philips GrowWise control system provides him control over the light intensity and helps to optimize the electricity management of the entire company.


    “All-in-all it has proven to be a win-win situation for both parties”, the grower concludes satisfied. “I honestly believe that I now have the best installation available today. Thanks to extensive research both Signify and myself have a great deal of new knowledge and experience on full LED in cucumber cultivation. That knowledge is very valuable to us both.”


    Supporting food availability through horticulture LEDs illustrates our commitment to supporting good health and wellbeing (SDG3). It is key to our commitment to doubling the percentage of our revenues for brighter lives, which benefit society, to 32%. This is part of our Brighter Lives, Better World 2025 program, which was launched in September 2020.


    Find out more about how grow lights are helping growers around the world on our horticulture website.

    For further information, please contact:


    Global Marcom Manager Horticulture at Signify

    Daniela Damoiseaux

    Tel: +31 6 31 65 29 69


    Signify PR Benelux


    Roel Dekoninck

    Tel: +32 477 252356


    About Signify

    Signify (Euronext: LIGHT) is the global market leader in lighting for professionals and consumers and lighting for the Internet of Things. Our Philips products, Interact connected lighting systems and data-enabled services, deliver business value and transform life in homes, buildings, and public spaces. In 2019, we achieved sales of EUR 6.2 billion with approximately 37,000 employees in more than 70 countries. We unlock the extraordinary potential of light for better lives and a more sustainable world. We achieved CO2 neutrality by 2020 and have been on the Dow Jones Sustainability Index since our IPO in 2016. We were named Industry Leader in 2017, 2018 and 2019. Signify news can be found in the Newsroom, on Twitter, LinkedIn, and Instagram. Information for investors can be found on the Investor Relations page.

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