Project Details


Solid-state lighting, which uses light-emitting diodes (LEDs), is globally replacing traditional incandescent lighting, due to lower power consumption and greater durability. Photometers are used to measure the performance of lights, and are calibrated using standard lamps to ensure the accuracy and consistency of measurements. However, the standard lamps used for calibration are currently based on incandescent lights, not LEDs. This project will develop new standard lamps based on LEDs and new measurement techniques for defining the properties of solid-state lights. The results will be used by National Measurement Institutes and test laboratories to accurately calibrate solid-state light photometers and will give European industry an advantage in the development of new commercial standard lamps. These outputs will result in a more reliable classification of the energy efficiency of solid-state lighting, increasing consumer confidence in this new greener technology.
Short titlePhotoLED
Effective start/end date01/09/201601/09/2019

Collaborative partners

  • Technical University of Denmark (lead)
  • Philips Lighting (Project partner)
  • National Institute of Standards and Technology (Project partner)
  • Aalto University (Project partner)
  • Physikalisch-Technische Bundesanstalt (Project partner)
  • Dutch National Metrology Institute (Project partner)
  • LMT Lichtmesstechnik GmbH Berlin (Project partner)
  • Czech Metrology Institute (Project partner)
  • École nationale des travaux publics de l'État (Project partner)
  • VTT Technical Research Centre of Finland Ltd. (Project partner)
  • OSRAM Haus München GmbH (Project partner)
  • Swiss Federal Institute of Metrology (Project partner)
  • OSRAM Opto Semiconductors GmbH (Project partner)
  • Istituto Nazionale di Ricerca Metrologica (Project partner)
  • Metrosert AS (Project partner)


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