Interlaboratory Comparison 2023 (IC 2023) for Temporal Light Modulation (TLM) measurement

The SSL Annex has launched its 2023 Interlaboratory Comparison (IC 2023) of temporal light modulation (TLM) measurements.   IC 2023 is open to all photometric labs that have capability for measuring TLM quantities, in particular, short-term flicker indicator (PstLM), and stroboscopic effect visibility measure (SVM), of LED lighting products. Laboratories that conduct or plan to conduct testing of LED lamps and luminaires for these TLM quantities are encouraged to participate in IC 2023. This comparison is being organised primarily to investigate the degree of agreement in the measurements of these TLM quantities among the participants as technical study as well as to provide verification of each participating laboratory’s measurement capabilities.

IC 2023 is thus designed in compliance with ISO/IEC 17043 to serve as a proficiency test for SSL testing accreditation programmes that recognise this comparison, as was done in the SSL Annex’s IC 2013 and IC 2017. IC 2023 will use IEC TR 61547-1 and IEC TR 63158 as the test methods for determining quantities PstLM and SVM respectively. If recognised by accreditation bodies, the participant results reports may be used as a proficiency test not only for IEC TR 61547-1 and IEC TR 63158 but also regional versions of these test methods. The results can also be used for benchmarking.

Please click on this link to learn more about IC 2023 and how to register to participate.