Specifications below were checked against official manufacturer pages or datasheets on August 27, 2026. Product availability and exact watt classes can vary by installer and market. Product imagery is sourced from manufacturer materials.
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Open the REC vs Qcells vs Silfab comparison for one mobile-friendly specification table plus the locally hosted product images.
Trying to understand the technology labels first? Use the visual HJT vs TOPCon guide to see how both architectures relate to monocrystalline silicon.
Alpha Pure-RX
Power450-470 W
Max efficiency22.6%
Cell technologyHJT (heterojunction)
Performance term25 years
REC's high-power residential HJT module family.
View full specifications →
Q.TRON BLK M-G2+
Power415-440 W
Max efficiency22.5%
Cell technologyN-type TOPCon / Q.ANTUM NEO
Performance term25 years
All-black residential N-type module.
View full specifications →
SIL-440 QD
Power440 W
Max efficiency22.6%
Cell technologyN-type silicon
Performance term30-year linear power performance guarantee
440 W residential module with 22.6% efficiency.
View full specifications →| Specification | REC Alpha Pure-RX | Qcells Q.TRON BLK M-G2+ | Silfab SIL-440 QD |
|---|---|---|---|
| Power | 450-470 W | 415-440 W | 440 W |
| Max efficiency | 22.6% | 22.5% | 22.6% |
| Cell technology | HJT (heterojunction) | N-type TOPCon / Q.ANTUM NEO | N-type silicon |
| Product warranty | 20 years standard; 25 years with eligible REC ProTrust | 25 years | 12 years standard; extendable to 25 years subject to registration and conditions |
| Performance warranty | 25 years | 25 years | 30-year linear power performance guarantee |
| End-of-term performance | 92% minimum power in year 25 | At least 90.58% nominal power at year 25 | 89.3% minimum at year 30 |
How to use panel specifications
- Higher module efficiency can matter when usable roof area is limited.
- Panel wattage affects how many modules are needed for a given system size, but wattage alone does not determine annual production.
- Temperature behavior, shading, inverter design and roof orientation also affect real-world output.
- Warranty terms have conditions. Always review the current manufacturer warranty and installer workmanship coverage before signing a contract.