HEP Plasma Lighting Technology

Ceravision's HEP plasma grow-light, delivers a unique UV spectrum of UV-B, UV-A and blue light that is missing from most grow-lights.  HEP plasma grow-lights deliver the UV now recognised as vital for producing crops with real quality and value.  Offering flecxibility iin spectral output they can complement other less flexible lights to create a more scientific approach to horticulture grow-lighting.

HEP technology is a unique genre of electrodeless, radio frequency (RF) driven lighting invented by Ceravision.  HEP uses RF in the microwave range to create a high intensity plasma discharge.  The proprietary plasma burner is designed to efficiently collect and distribute the light produced.  HEP plasma comprises four key elements:

  1. Quartz RF resonator/plasma burner (the ‘lamp’);
  2. Transition unit (couples the RF energy from the source into the resonator);
  3. RF microwave source; and
  4. AC/DC power supply. 

The resonator/burner contains an inert gas and metal halide salts. RF microwave energy resonating within the lamp ionizes the gas to form a plasma that combines and vaporises the metal halide salts, emitting an intense, bright light. The light is emitted from a very small source, which enables the light to be accurately focussed and distributed and provide greater optical performance.  This method of producing light uses less energy and delivers more light of a better quality.  

HEP Plasma Grow-Lights
Output UV-B, UV-A and Blue Light
Ceravision demonstrate its UV420  plasma grow-light - a UV grow-light with UV-B, UV-A and blue light.

The absence of electrodes, or filaments, enables the use of a range of chemicals. If used in electrode lamps, these chemicals would react with electrodes and diminsh output and shorten life.  By careful selection of chemical dose components, HEP can deliver intense radiation across the spectrum.  This radiation is a combination of atomic and molecular emissions. 

HEP's spectral output can be tailored to create plasma grow-lights to suit specific plants or growing cycles or tageted outcomes.  

Ceravision has launched its UV420 plasma grow-light for horticulture and hydroponics markets. It delivers vital levels of UV-B, UV-A and blue spectra to complement high PAR grow-lights in indoor growing facilities. 

HEP plasma lighting lends itself to a number of other high-output applications including lighting for: Reptile Houses; Artificial Coral Growth; Insect Breeding; and UV-C for sterilisation. 

Further Information

Future Applications

Delivering flexible spectral outputs, Ceravision's HEP plasma lighting offers added-value and economic solutions in horticulture grow-lighting and other commercial applications.

HEP Plasma Lighting Technology

Ceravision’s HEP plasma grow-lights, with a UV spectrum providing UV-B, UV-A and blue herald a new scientific direction for horticulture lighting.

Intellectual Property

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

Featured News

Dec 2019: Mr Andrew Fuller of Bridge Farm, explains how incorporating Ceravision's UV grow-light in its industrial hemp cultivation boosted cannabinoids by 40% (see video).


Oct 2019: Ceravision presents its new horticulture UV grow-light to demonstrate the reliability and flexibility of its patented plasma lighting at the NIAB Industry Workshop on Advances in Grow-Lighting...


Sept 2019: Independent lab tests on harvested industrial hemp crop at Bridge Farm Group confirm that incorporating Ceravision's complementary UV grow-light boosted cannabinoids by 40%.