High Efficiency Plasma

High Efficiency Plasma (HEP) technology is a new and unique genre of electrodeless, 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. In practical terms, this will result in a significant reduction of energy usage and capital expenditure to light any given area. 

Ceravision's High Efficiency Plasma system is an electrodeless lighting platform that uses radio frequency (RF) in the microwave range to create a high intensity plasma discharge. Ceravision's proprietary lighting platform consists of four integrated elements:

  1. Quartz RF resonator/plasma burner (lamp)
  2. Transition unit (the system which couples the RF energy from the source into the resonator)
  3. RF microwave source in the form of a magnetron
  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 with the metal halide to vaporize the metal halide salts, emitting an intense, bright light.

Further Information

Future Markets & Applications

Energy efficiency is a global driver within many markets and Ceravision’s core technology has the ability to address these markets. Due to the flexible nature of the 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.


Ceravision’s High Efficiency Plasma (HEP) light is particularly suited to medium and high power applications. The light is emitted from a very small source, which enables Ceravision to accurately focus and distribute the light. This in turn facilitates significantly greater optical performance.

Intellectual Property

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

Featured News

The testing of Ceravision’s High Efficiency Plasma (HEP) lamps in Rothamsted has been underway now for four months. The testing compares Ceravision’s HEP lamps with legacy metal halide lamps and new LED systems and their impact upon the growth of wheat.


Ceravision are delighted to announce the much anticipated debut of ionGROW, the world's first High Efficiency Plasma grow light, at the upcoming infoAgro exhibition taking place from the 10th - 12th May in Almeria, Spain.


Ceravision's Horticultural Growth Light Solution ionGROW™ is set to begin trials at Rothamsted Research.