
Measurement we can trust.
The xenon solar simulators that calibrate the world’s photovoltaics. The solar reference since 1978, Swiss made.
We'll be there.
































































































Measuring technology you can trust.
A module’s power rating is a contract. Pasan builds the xenon solar simulators, and the measurement methods, that make that number right: low uncertainty, fully traceable, repeatable anywhere in the world.
One platform spans the whole industry, from the production line to the laboratory to the characterisation of multijunction cells bound for space.

First on innovation. Built to stay accurate.
One xenon platform. From cell to space.
One measurement core, packaged for every job in photovoltaics, so a result is the same on the line, in the lab and in orbit.

Long-pulse xenon solar simulator for calibration laboratories, A+A+A+ to IEC 60904-9, measures the most capacitive modules without hysteresis.

Production-line xenon solar simulator, A+A+A+ laboratory-grade accuracy at a 15-second cycle, with full METAS-traceable rating.

The industry's reference xenon solar simulator since 2008, A++A++A++ to IEC 60904-9, lowest measurement uncertainty, Swiss-made and METAS-traceable.

Temperature-controlled module testing for IEC 61215 / 61853 coefficients, ±1 °C across the full module.

Angular-response measurement on full-size modules, the IAM that energy-yield models need.

AM0 xenon simulation for space-qualified solar cells, the sun as a satellite sees it.
A tenth of a percent decides a contract.
At gigawatt scale, a fraction of a percent of measurement uncertainty is real money, and real trust. Lowering it is the whole point of a Pasan.
| Method | Flashes | Uncertainty |
|---|---|---|
| Standard multi-flash | many | ≈ 1% |
| Long single pulse | 1 | ≈ 0.5% |
| DragonBack® | 10× fewer | ≈ 0.2% |
DragonBack® & SmartSweep
Hysteresis-free methods that measure even highly capacitive cells and perovskite modules without transient error, fewer flashes, lower uncertainty. SmartSweep picks the right method automatically.

Setting industry standards.
Three PV shows, one busy season. The Mobile Lab is going on tour, and the Pasan team will be talking xenon-grade calibration, DragonBack and what comes next for the HighLIGHT line.
Why long-pulse illumination and hysteresis-free methods are now essential for accurate IV on emerging PV technologies, and how DragonBack solves it.
The acquisition combines Pasan's xenon heritage with Avalon's LED leadership. Two product lines, one Swiss group, headquartered in Neuchatel.
Let’s measure something precisely.
Tell us what you need to measure and to which standard. We’ll come back with a specification, an uncertainty budget and a quote.
- A measurement spec matched to your devices and standards
- Spectral class, uncertainty budget and traceability documented
- Factory and on-site acceptance testing included
- Service and recalibration from Neuchâtel and worldwide partners
