Solar Module Degradation & Warranties Explained
How to read a PV module warranty — product versus performance cover, what a 30-year linear curve guarantees, what causes degradation, and the exclusions that decide a claim.
182/210 mm N-type TOPCon bifacial dual-glass for residential, C&I and utility plants.
A compact dual-glass option for roof layouts where module dimensions, handling and string design matter as much as headline watts. This page documents the CSTB54 model group; larger NeoPro formats require their own datasheets.
Check roof loading and clamp zones with the mounting supplier. Compare cold-weather Voc with inverter limits and hot-weather Vmp with the MPPT window. Rear-side gain depends on layout and reflectance, not the bifaciality figure alone.
Send country, application, target model, required power, installation constraints and quantity. Request the current drawing, electrical table, installation instructions and certificate scope. A series summary is not an installation approval.
Figures below apply only to the named models in the linked datasheets, not every product in the family. Confirm the current revision, model-specific certificates and signed warranty before purchase.
| Pmax (W) | Voc (V) | Vmp (V) | Imp (A) |
|---|---|---|---|
| 430 | 39.40 | 32.80 | 13.11 |
| 435 | 39.58 | 32.98 | 13.19 |
| 440 | 39.76 | 33.16 | 13.27 |
| 445 | 39.94 | 33.34 | 13.35 |
| 450 | 40.12 | 33.52 | 13.42 |
| 455 | 40.30 | 33.70 | 13.50 |
Compare applications, documented specifications and installation requirements before choosing a product.
| Series | Power at STC | Which project fits this series? | View specifications & selection guide |
|---|---|---|---|
| NeoPro — TOPCon | 430 – 725 W | 182/210 mm N-type TOPCon bifacial dual-glass for residential, C&I and utility plants. | View specifications & selection guide → |
| NeoBlack — Back-Contact | 460 – 660 W | All-black back-contact modules for premium residential rooftops. | View specifications & selection guide → |
| HyperX — HJT | 590 – 730 W | Heterojunction high-power series with the lowest temperature coefficient. | View specifications & selection guide → |
| Off-Grid Series | 40 – 380 W | 26 SKUs across five 182/210 mm platforms for 12/24 V charging, pumps and hybrids. | View specifications & selection guide → |
| Flexible Series | 50 – 500 W | Ultra-light N-type TOPCon flexible panels for curved roofs, vehicles and marine use. | View specifications & selection guide → |
| Portable Series | 180 – 200 W | Folding suitcase panels with kickstands and USB/DC outputs for off-grid power. | View specifications & selection guide → |
How to read a PV module warranty — product versus performance cover, what a 30-year linear curve guarantees, what causes degradation, and the exclusions that decide a claim.
How to size PV strings — temperature-corrected Voc for the cold-morning voltage limit, the hot-day MPPT check, current and fuse limits, with worked examples.
A vendor-neutral comparison of the three mainstream N-type module technologies — TOPCon, heterojunction (HJT) and back-contact — covering efficiency, temperature behaviour, bifaciality, cost and where each fits best.
Send country, application, target model, required power, installation constraints and quantity. Request the current drawing, electrical table, installation instructions and certificate scope. A series summary is not an installation approval.
Request a model-specific quote →