HEP Plasma Lighting Technology

High Efficiency Plasma (HEP) light is particularly suited to medium and high power applications. Recently launched in to the global horticulture market, Ceravision's plasma grow-light delivers the blue-light, UV-A and UV-B light missing from most grow-lights. 

HEP technology is a new and unique genre of electrodeless, radio frequency (RF) driven lighting invented by Ceravision. The unique design of Ceravision's proprietary plasma burner allows the efficient collection and distribution of the light produced. This proprietary technology uses radio frequency in the microwave range to create a high intensity plasma discharge.  It comprises four integrated 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.
  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. This method of producing light is extremely and efficient, using less energy to make more light of a better quality.  And it has the flexibility to tailor spectra.

The light is emitted from a very small source, which enables the light to be accurately focussed and distributed and provide greater optical performance. 

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

The absence of electrodes, or filaments, enables the use of a range of chemicals; chemicals, which if used in electrode lamps, would react with electrodes.  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. 

Ceravision has launched its UV420 plasma grow-light for horticulture and hydroponics markets.  This growlight  economically delivers the blue-light, UV-A and UV-B light missing from most grow-lights in the market. 

However, Ceravision's HEP plasma lighting technology lends itself to a number of other high-output applications including lighting for: Reptile Houses; Artificial Coral Growth; Insect breeding; TV Film and Studio Lighting; and ultra-violet water sterilisation. 

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.