Latest News: September 2020: Article published in the UV4Plants Bulletin by our Stuart Mucklejohn, Barry Preston, Afroditi Moutsi, and Sean Rogers and edited by: Marcel A. K. Jansen and Pedro J. Aphalo.  The article entitled 'High Intensity UV-B and UV-A Radiation from Plasma-based Sources' discusses the benefits of UV-A and UV-B for plants and indoor cultivation.

The UV4Plants Bulletin is an open access journal publishing both peer-reviewed articles and editorial-board-reviewed opinions, commentaries, profiles and news.  The International Association for Plant UV Research advances plant UV research and promotes the sharing of knowledge and collaboration among researchers, from academic and non-academic organisations to foster a culture of research-excellence and good practice through innovative events in research, public engagement and education. Read the article here.


January 2020: Shane Torpey of MIGRO Reviews the UV420....

Shane Torpey is a manufacturing engineer with many years experience in the industry. He runs MIGRO, a trading division of Partech LED Ltd, and as well as developing LED grow-lights he also reviews other grow-light technologies. His review of the new ‘super cool UV cannon’ UV420 grow-light can be watched on his Migro YouTube channel here.

Dec 2019: Andrew Fuller of Bridge Farm Group Explains the Benefits of the UV grow-light.....

Mr Andrew Fuller, Technical Director of the Bridge Farm Group, interviewed by Shane Torpey of MIGRO, explains how incorporating the Ceravision UV grow-light for its industrial hemp cultivation boosted cannabinoids by 40%. Watch the interview here.

Interviewed at the Bridge Farm Group herb nursery, Andrew explains how he has been experimenting with the UV420 UV grow-light to complement the high pressure sodium (HPS) fixtures on its industrial hemp and salad crops. The results revealed that by applying the UV grow-light at the end of the crop, terpene oil production was boosted by 25% to 40%. The trials were extended to include other herbs, including basil, rosemary and lavender to improve oil content, flavour and taste.

In these price competitive markets, Andrew is always looking to differentiate his products and the results with UV reveal significant improvements in taste and flavour that will help give him an edge with supermarket buyers and their discerning customers. He uses HPS lamps and is exploring the latest LED fixtures but incorporating them with the Ceravision UV lamps. The results have been very exciting and Andrew will continue to explore and assess the best time to apply the UV to optimise the commercial value of different crops.

Global research is confirming the vital importance of UV in the 280-400 nm range from cultivation through to consumption. For most plants this range strengthens root systems, boosts secondary metabolites to improve nutritional and medicinal values, and bolsters resistance to pathogens and pests. However, this vital UV-B spectral range is blocked by greenhouse glass and not delivered  in the smae levels if at all by other grow-lights. 

The Ceravision grow-light has a spectral output concentrated in the high energy 280-550 nm range to complement HPS and LED grow-lights and better replicate solar radiation.

Bridge Farm Group, the European arm of the NASDAQ listed Sundial Group, is the leading producer of ornamental plants, flowers and herbs in the UK. Using the most innovative techniques in the industry, it sells more than 80 million units per year to retailers and consumers across the globe.

Shane Torpey is founder of Partech LED Ltd trading as MIGRO. As a manufacturing engineer, Shane is always keen to explore new ideas and products and to provide independent research and advice on horticulture lighting to help raise awareness and educate industry buyers. MIGRO has also developed its own LED grow lights.

Oct 2019, Ceravision at the NIAB Industry Workshop on Advances in Grow Lighting.....

Dr Stuart Mucklejohn of Ceravisionn presents a lecture entitled All Light is Not the Same to explain how plants need more than PAR light in greenhouse cultivation, they also need the vital UV-A and UV-B to grow to their full potential. Ceravision also showcased our unique complementary UV420 grow-light at this workshop (see detail here). The National Institute of Agricultural Botany (NIAB)is a plant science research company based in Cambridge, UK and organised this event at the Sophi Taylor Conference Centre in Cambridge. Other prominent speakers include:

  • Erik Runkle, Michigan State University: Considerations & US perspectives in selecting LED fixtures for greenhouse applications
  • Dirk Ludolph, LWK Niedersachsen: LED light for ornamentals - more than fairy lights
  • Dr Gareth John, LIA: Lighting systems and operator safety.

NIAB is organising this grower-focused event as an essential knowledge exchange workshop, to offer a platform for growers of all protected crops to engage and discuss the latest lighting related products and innovations in horticulture lighting.

Sept 2019: Global Press Release, 19th Sept 2019 'Ground Breaking Results for New Horticulture Light Technology':

Ceravision Limited, inventor of a new and unique scientific approach to horticulture lighting, today announced the results of trials undertaken over the last six months with a group of leading horticulture businesses.

Results from independently conducted trials with Bridge Farm Group on licenced industrial hemp have demonstrated an increase in yields of cannibinoid oils by up to 40% compared to other lighting solutions. Trials elsewhere on salad crops have also revealed benefits - faster growth, fewer pesticides and less waste.

Exploiting its innovative plasma light technology, Ceravision's new and patented approach to horticultural lighting is based on the ability to produce unique light spectra with unparalleled levels of UV-A and UV-B.

This UV spectral range is crucial for indoor cultivation. UV-B can benefit plants as it enhances the production of the secondary metabolites that act as 'sunscreens' and boost aroma, flavonoids, terpenes, colour, nutritional and medicinal values. UV can also improve defences against insect and virus attacks and accelerated pollination.  Ceravision's plasma UV420 grow-light is designed to complement traditional PAR grow-lights. With a spectrum concentrated from 280-550 nm, it delivers the UV-A and UV-B not transmitted through greenhouse glass and not available from traditional PAR lights.

Barry Preston, Chief Scientist of Ceravision said: "We are delighted that the proprietary tailored light spectrum of our newly developed UV420 boosts yield, flavour and quality for a range of crops and has the potential to transform horticulture productivity”.

Andrew Fuller, Technical Director of Bridge Farm Group said: "We have tested Ceravision's new grow-light in the cultivation of industrial hemp and found it to deliver significant benefits compared to other lighting technologies in boosting yield and cannabinoid content. I believe that Ceravision lighting technology and expertise offers a ground-breaking step forward in horticulture lighting”.

About Bridge Farm Group: The Bridge Farm Group, the European arm of the NASDAQ listed Sundial Group, is the leading producer of ornamental plants, flowers and herbs in the UK. Using the most innovative techniques in the industry, it sells more than 80 million units per year to retailers and consumers across the globe. 

August 2019: at Autopot Summer Social 2019: Ceravision exhibited its unique UV420 grow-light at the annual AutoPot Social. This UV grow-light is a perfect complementary fixture to work alongside PAR lights. With a spectrum concentrated in280-550 nm, it delivers the UV-B not transmitted through greenhouse glass and not available from other available grow-lights.

April 2019: Article published in The Lighting Journal April 2019: Co-written by Ceravision's Dr. Stuart Mucklejohn and lighting consultant John Stocks, in relation to horticulture lighting entitled ‘Growth Cycle’ (see 'Downloads' under 'Products'). With artificial lighting increasingly being used within horticulture, it is vital that lighting professionals properly understand the links between plant growth, yields and health through exposure to UV.  This eminent journal from The Institute of Lighting Professionals, delivers lighting information on all aspects of the lighting profession including technical coverage and development, new products and services and professional news.

February 2019: Ceravision joins UV4Plants - the International Association for Plant UV Research: 

Ceravision is a member of UV4PlantsCeravision is using its UV420 grow-light, with its unique spectrum of UV-A, UV-B and blue light, to support continued research in to UV and plants. The objectives of this eminent Association include the advancement of plant UV research by promoting, sharing knowledge and collaboration among researchers

December 2018: Ceravision delivers to The Greenhouse Effect the first HEP plasma UV grow-lights.

The UV420 plasma grow light is a complementary grow-light designed to work with PAR grow-lights to provide UV-B, UV-A and blue-light, now accepted by scientists as essential for influencing plant physiology.

The UV420 is a perfect grow-light to help enhance a range of high value crops such as roses, tomatoes, chillies, tobacco and medicinal cannabis. For further information please email:

UV420 plasma grow-light on show at Autopot Summer Social August 2018:

Working closely with The Greenhouse Effect Hydroponics Ltd (website click here), Ceravision is exhibiting its UV420 plasma grow-light at the Autopot Summer Special show on 18th and 19th August (see Autopot here).

For further information please email:

Further Information

Future Applications

Delivering flexible spectral outputs, plasma lighting offers practical economic solutions in horticulture and other applications requiring natural solar levels of UV-A and UV-B, or UV-C for sterilisation.

Plasma Light Technology

Ceravision’s plasma grow-lights, with a spectrum providing UV-B, UV-A and blue herald a new scientific future in horticulture lighting and UV-B is beneficial for humans producing the vitamin D essential for health.

Intellectual Property

Ceravision maintains an extensive Intellectual Property (“IP”) portfolio comprising Patents, Trade Marks and Design Rights.

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