HighLIGHT A++ Reference
Reference Light
The HighLIGHT A++ Reference is the xenon solar simulator the PV industry calibrates against. Since 2008, tier-1 laboratories worldwide have used it to define what accurate means for a solar module: A++A++A++ under IEC 60904-9, twice as good as Class A, traceable to METAS (the Swiss federal metrology institute) under ISO/IEC 17025. Designed, built and calibrated in Switzerland, it is delivered worldwide with no export-licence exposure.
A++A++A++ · METAS · since 2008
A standard others are measured against.
When a result has to be defensible, for a certification body, a national lab or a gigawatt supply contract, it is compared to a reference. The HighLIGHT reference has held that role since 2008, with A++ classification across spectral match, spatial uniformity and temporal stability.
- ▸Spectral / uniformity / stabilityA++A++A++
- ▸Non-uniformity< 0.5 %
- ▸Long-term instability< 0.5 %
- ▸In serviceindustry reference since 2008

A measurement is only as good as its chain.
Every Pasan reference is traceable to METAS, the Swiss federal metrology institute, under ISO/IEC 17025, and classified to IEC 60904-9. With the WPVS transimpedance amplifier and WPVS reference cells, the chain runs unbroken from your line back to the SI. Factory and on-site acceptance tests document it end to end.
- ▸Primary traceabilityMETAS (Switzerland)
- ▸AccreditationISO/IEC 17025
- ▸ClassificationIEC 60904-9
- ▸Acceptancefactory + on-site testing


