News

Reliable classification for the energy efficiency of solid-state lighting

Light emitting diode

Joint research projects develop an online uncertainty evaluation tool for electrical measurements of solid-state lighting (SSL) products.

The current uncertainty evaluations for lighting are based on power and current components in fundamental frequency, and are insufficient for SSL. The electrical characterisation of SSL sources, which use LEDs, needs to take into account completely new causes of uncertainty compared to conventional lighting sources. Practical methods, guidance and tools for uncertainty evaluation of measurements were urgently needed by the SSL industry.

EMRP projects Metrology for Solid State Lighting (ENG05 Lighting) and Metrology for efficient and safe innovative lighting (ENG62 MeSail) determined new uncertainty sources associated with SSL and quantified their effects. The results have been published in Metrologia and used in an online uncertainty tool. EMPIR project Future photometry based on solid-state lighting products (15SIB07 PhotoLED) will utilise the information gained in measurements of electrical properties of SSL products studied in EMRP projects ENG05 and ENG62 by developing new white LED-based calibration sources with stable DC- and AC/DC- electronics for test laboratories and NMIs to complement conventional incandescent sources used in photometric calibrations and testing of SSL products coming to market.

More reliable measurement of the electrical parameters of SSL products means that consumers will have more confidence in the energy efficiency of this new greener technology.

Select your area of interest
New software for the detection of cardiovascular disease
2021-03-30

Cardiovascular diseases are the leading cause of death globally, but an EMPIR project has provided a new tool to fight these disorders more

EMPIR project workshop on radiotherapy attracts more than 50 people
2021-03-24

EMPIR project workshop ‘How the metrology can support radiotherapy coupled with hyperthermia’ provides valuable insight more

World Water Day 2021
2021-03-22

EURAMET projects support the monitoring of harmful chemicals to help protect water health and aquatic biodiversity throughout Europe more

Invited keynote address on EMPIR research about realising the redefined kelvin
2021-03-22

Presentation to be given at ‘Sensor and Measurement Science International’, hybrid conference: face-to-face and virtual, 3 – 6 May 2021, Nuremburg, Ge... more

Registration open: EURAMET – BIPM training course on comparisons in thermometry
2021-03-17

Registration is now open for the EURAMET - BIPM training course on comparisons in thermometry more