More irradiance. Bigger area. Tighter spectrum.
The next-generation Avalon LED simulator. 1300 W/m² peak, 22 wavelengths, A++ A+ A++ across the three IEC 60904-9 dimensions, LTI 0.2%, active area up to 1.8 × 3 m. Silicon, perovskite and thin-film on one bench.
The lab reference above Pro, below ULTRA.
Pro is the cost-effective production workhorse for silicon lines. ULTRA is the top-of-the-line reference with 37 wavelengths and per-wavelength on/off control. Pro Max sits between them: tighter spectrum and higher irradiance than Pro, broader chemistry coverage than both, at a price point that makes sense for an advanced laboratory that does not yet need the full spectral-response capability of ULTRA. It is the Nexun a lab buys when silicon is not the only chemistry on the roadmap.
Four reasons labs step up to Pro Max.
Same calibration chain as ULTRA. Same physics-grade engine architecture. More irradiance, tighter spectrum, and the preconditioning module that opens the door to perovskite and thin-film on the same bench.
- 01
More irradiance, more headroom.
At 1300 W/m² peak, Pro Max delivers 18% more headroom than Pro. That matters for high-current bifacial modules, tandem cells, and any measurement where you need to hold irradiance steady at exactly 1000 W/m² without the LED engine running flat out. The extra headroom also keeps the engine within its most linear operating range, improving repeatability across long measurement campaigns.
- 02
Tighter spectrum across all three IEC dimensions.
Five extra independently controlled wavelength bands bring integrated SPD down from 35% to 27% versus AM1.5G. A tighter spectrum means less reliance on reference-cell correction, less spectral mismatch uncertainty, and a cleaner number when you publish. For multi-junction and perovskite cells where sub-bandgap photons matter, the difference is not cosmetic.
- 03
Silicon and beyond, on one bench.
Pro Max handles c-Si, PERC, TOPCon, HJT and IBC out of the box. Add the steady-state preconditioning module and the same instrument measures perovskite tandems, CIGS and CdTe repeatably. For labs that need one bench to cover the full chemistry roadmap — not just today's silicon — Pro Max is the answer. No second instrument, no spectral reconfiguration, no re-calibration.
- 04
Same software as ULTRA.
Pro Max shares the software stack, the calibration chain and the data formats with the entire Nexun line. Numbers measured on Pro Max map directly onto ULTRA results. Your reference modules travel between instruments without recertification. Your operators learn one interface, not two. And when your lab expands to ULTRA, there is no migration — just a new instrument on the same network.
Three steps up from Pro.
Pro stays in the line as the cost-effective production option, especially for HJT lines. Pro Max is the new reference for laboratories that need more headroom on every axis.
+18% headroom for high-current bifacial and tandem modules.
Five extra independently controlled bands give a tighter, smoother match to AM1.5G across all three IEC dimensions.
Tighter integrated spectral match to AM1.5G, less correction needed when matching to a reference cell.
The Pro Max bench, mid-cycle.
Long-pulse LED engine, calibration optics on rails, console at hand. A measurement runs in seconds.
Configure it to your bench.
Pro Max is built around a modular Nexun architecture. Add temperature control, electroluminescence imaging or steady-state preconditioning when the application asks for it. Every add-on runs through the same operator console and the same calibration chain.
Picking the right Nexun.
All three share the same software, the same calibration chain and the same overall architecture. The differences are in the engine. Pro is the silicon specialist; Pro Max widens the chemistry envelope and lifts SPD; ULTRA is the reference at the top of the line.
| Pro | Pro Max | ULTRA | |
|---|---|---|---|
| Wavelengths | 17 | 22 | 37 |
| Control channels | 8 | 8 | 32 |
| Active area | 1.8 × 3 m | up to 1.8 × 3 m | 1.8 × 3 m |
| Irradiance | 1100 W/m² | 1300 W/m² | 1100 W/m² |
| Integrated SPD | 35% | 27% | < 20% |
| LTI over pulse | 0.3% | 0.2% | 0.2% |
| Non-uniformity | < 1% | < 1% | < 0.5% |
| IEC 60904-9 class | A++ A+ A++ | A++ A+ A++ | A+++ A++ A+++ |
| Chemistries | Si, PERC, TOPCon, HJT | + perovskite, CIGS, thin-film | All, plus per-wavelength |
| Per-wavelength on/off | — | — | Yes |
For labs that measure beyond silicon.
Pro Max is the right answer when the bench needs tight spectrum, high irradiance and the flexibility to measure perovskite and thin-film chemistries alongside silicon. If the roadmap is purely silicon and cost-per-flash matters most, you want Pro.
- ►Calibration laboratories needing tight spectrum across all three IEC dimensions
- ►R&D groups characterising high-current bifacial and tandem cells
- ►Module makers validating large-format silicon up to 1.8 × 3 m
- ►Labs measuring perovskite or thin-film (CIGS, CdTe, …) with the precon add-on
Every number, on the table.
Active-area variants, optional EL configuration and reference cell sets are detailed in the full datasheet. Request access below.
Tell us your modules. We’ll size the bench.
Cell type, chemistry roadmap, active-area requirements. Our engineers come back with a configured Pro Max and a number on it, usually in 48 hours.