Horticulture & Plasma Grow-Lights

The world’s food production systems face major challenges in meeting the demands from rising populations whilst dealing with scarcities of land, water and energy and issues of globalisation and climate.  In addition to food crops, biotechnologists are increasingly looking to use plants for the development of new medicines.  The UV420 plasma grow-light will be an important element in Controlled Environment Agriculture to help deliver global food security.  In medicines, this new plasma grow-light is attracting interest as a cannabis grow-light as this market is deregulated worldwide.

Grow-lights, along with efficient horticulture procedures, enable accelerated plant development, extended growing periods and higher crop yields; and they can also influence plant physiology.  An increasing range of crops are produced under grow-lights.  Whilst this may have improved production, it has sometimes been at the expense of product value eg taste; this is because some lighting technologies emit suboptimal-spectra. 

UV420 Plasma Grow Light in Cannabis Hydroponics Facillity

It was believed that plants use light only from within the Photosynthetically Active Radiation (PAR).  Research now indicates plants use blue-light, UV-A and UV-B light to improve disease resistance, bio-mass, strength and leaf thickness.  These are essential for healthy plants and useful in plant taxa used for medicine.  These factors are facilitated by HEP plasma grow-lights; they are costly to employ in other lights.  

HEP plasma lighting delivers high levels of illumination from a very small source.  The small source size allows design flexibility for luminaires to be compact and this minimises the shadowing from the units to maximise natural daylight.

In horticulture, HEP plasma grow-lights offer benefits in features, performance, and economics that demonstrate technical and commercial advantages over other grow-light technologies.  Plasma grow-lights are highly persuasive with enormous potential: 

  • Fewer failure mechanisms prolong life
  • Highly efficient with excellent illuminance 
  • Dimmable with no colour shift
  • Light spectrum that can be tailored to include for example UV-A, UV-B and UV-C depending on application
  • Flexibility to tailor spectra economically to suit crops and to influence plant physiology
  • More energy efficient than conventional electroded HID grow-lights in the 300 to 550 nm region
  • Excellent illuminance provides light that penetrates plant canopies more than fluorescent and LEDs
  • High output maintenance factor prolongs output over time compared with HID or HPS.

Future Markets & Applications for HEP Plasma Lighting

Energy efficiency is a global driver in lighting-related markets and HEP plasma light technology has the ability to address these issues.  By exploiting the flexible nature of the core plasma light technology, we are able to facilitate a variety of power levels (400 W to 2.0 kW) and spectra ranging from visible to UV light.

Building on Ceravision's strong foundation of research and development, our scientists and technicians are continuing to develop the HEP plasma lighting technology to exploit opportunities in other applications:

  • Tailored grow-lights: for various plant crops, medicial plants including cannabis, and other food production systems including algae and for the breeding of insects for high protein foodstocks for animals and human consumption.
  • Lighting for Reptile Houses to provide the essential UV-A and UV-B for reptiles in indoor habitats. 
  • Lighting for Artificial Coral Growth: HEP lights can deliver the blue-light, UV-A and UV-B that has been found to help promote coral growth in aquaria.
  • Stadium Turf Maintenance Lighting: using a lighting unit to encourage root growth and photosynthesis and assist grass recovery and growth after stadium events.
  • UV-C Treatments: for non-chemical control of plant diseases on crops to reduce losses; the protective effects of UV-C, which stimulate plant defences, can induce resistance against a range of pathogens pre and post-harvest. 
  • UV-C for germicidal irradiation in Water Sterilisation: a purely physical, chemical-free process; to efficiently reduce parasites such as cryptosporidia or giardia, which are extremely resistant to chemical disinfectants, and to remove chlorine and chloramine species from water.
  • UV-C for germicidal irradiation in Air Purification: to reduce airborne-mediated microbial diseases such as influenza and tuberculosis that present major public health challenges. 

Please contact us if you would like to discuss the possibilities of utilising HEP plasma lighting technology in these sectors, or indeed any other applications that you may have in mind; email:; or call us on +44(0) 1908 379444.

Further Information

Future Applications

Light is now a value added utility in many sectors. Offering a wide spectral range and energy efficiency, Ceravision's HEP lighting technology has the flexibility to offer economic solutions in high value global markets.

HEP Plasma Lighting Technology

HEP Plasma lighting is perfect for horticulture grow-lighting, where it delivers UV-A and UV-B light; and with its flexible spectral outputs and efficiency it offers solutions across a range of applications.

Intellectual Property

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

Featured News

Ceravision staff pictured delivering the first of its new UV420 Grow-lights to The Greenhouse Effect


Ceravision's new UV420 plasma grow-light is shown at Autopot Summer Social 18th - 19th August 2018


Ceravision's unique UV420 Plasma Grow-light revealed at Greentech show in Amsterdam in June 12-14 2018.