2.4.2 Installation of electronic ballast

2.4.2 Installation of electronic ballast


Electrical ballast is a device whose aim is limiting the amount of current that passes through a discharge lamp during the start-up. First, they provide the necessary voltage to start up the lamp and after that they limit the current. Lamps that use ballast are halogen lamps, fluorescent lamps and High Intensity Discharge lamps (HID).


  • A reduction in the energy consumption of 16% can be reached
  • With dimmable electronic ballasts, the intensity of light can be controlled and adjusted reaching an additional reduction in the energy consumption up to 70%
  • The typical flickering and the stroboscopic effect disappear because of their high frequency
  • Extend the lifetime of the lamps
  • Noiseless
  • One electronic ballast can substitute more than one magnetic ballast


  • Electronic ballasts have shorter lifetime than electromagnetic ones
  • Non-recyclable

Economic assessment

Initial investment: medium. Around 30 euros/unit.
Payback: medium. More than 5 years.

References and best practices

  • CELMA Guide for the application of the Commission Regulation (EC) No. 245/2009 on “Tertiary lighting sector products: http://www.tridonic.com/com/en/download/CELMA_Ecodesign_1st_edition_Dec2009_full.pdf

  • Energy savings analysis and harmonics reduction for the electronic ballast of T5 fluorescent lamp in a building’s lighting system: www.sciencedirect.com/science/article/pii/S0378778815002510

Image gallery


Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices

Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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