Solar Panel Comparison
Q CELLS (Hanwha) Q.PEAK DUO BLK ML-G10+ 405W All Black vs REC Group Alpha Pure-R 430W
The Alpha Pure-R 430W delivers 430W, 25W more than the Q.PEAK DUO BLK ML-G10+ 405W All Black at 405W.
Alpha Pure-R 430W has a higher efficiency of 22.3% versus 20.9% for the Q.PEAK DUO BLK ML-G10+ 405W All Black.
They use different cell technologies: Q.PEAK DUO BLK ML-G10+ 405W All Black uses Mono PERC Q.ANTUM DUO Z, while Alpha Pure-R 430W uses HJT (Heterojunction).
Here's how they compare across all key specifications.
Spec
Q CELLS (Hanwha)
Q.PEAK DUO BLK ML-G10+ 405W All Black
405W
20.9% efficiency
REC Group
Alpha Pure-R 430W
430W
22.3% efficiency
Full Specification Comparison
| Spec | Q.PEAK DUO BLK ML-G10+ 405W All Black | Alpha Pure-R 430W |
|---|---|---|
| Performance | ||
| Power Output | 405 W | 430 W |
| Efficiency | 20.9% | 22.3% |
| Cell Type | Mono PERC Q.ANTUM DUO Z | HJT (Heterojunction) |
| Temp. Coeff. | -0.35 %/°C | -0.24 %/°C |
| Number of Cells | 132 | 80 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 40.2 V | 59.4 V |
| Vmp | 33.8 V | 50 V |
| Isc | 10.7 A | 8.91 A |
| Imp | 11.98 A | 8.4 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1756x1096x32 mm | 1730x1118x30 mm |
| Weight | — | 21.5 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4 | MC4 |
| Warranty & Certification | ||
| Product Warranty | 12 | 20 years |
| Power Warranty | 25 years linear | 25 years (92% min, 0.25%/yr) |
| MCS Certified | Yes | Yes |
| Certifications | IEC 61215, IEC 61730, VDE, CE | IEC 61215, IEC 61730, RoHS |
| Pricing (UK) | ||
| Retail Price | — | £142.00 |
| Price per Watt | — | £0.330/W |
Frequently Asked Questions
Which is more efficient, the Q.PEAK DUO BLK ML-G10+ 405W All Black or the Alpha Pure-R 430W?
The Alpha Pure-R 430W is more efficient at 22.3%, compared to 20.9% for the Q.PEAK DUO BLK ML-G10+ 405W All Black. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Q.PEAK DUO BLK ML-G10+ 405W All Black or the Alpha Pure-R 430W?
The Alpha Pure-R 430W has a higher rated output at 430W. This means fewer panels would be needed to reach the same system size compared to the Q.PEAK DUO BLK ML-G10+ 405W All Black.
Which solar panel should I choose for my home — the Q.PEAK DUO BLK ML-G10+ 405W All Black or the Alpha Pure-R 430W?
The right choice depends on your priorities. If maximising energy generation per panel is key, consider efficiency and wattage. If budget is your main concern, compare price per watt. Both panels have their merits — use our Solar Estimator to see how each would perform in your specific home setup.
Q CELLS (Hanwha)
Q.PEAK DUO BLK ML-G10+ 405W All Black
405W · 20.9% efficiency · Mono PERC Q.ANTUM DUO Z
View full specs →REC Group
Alpha Pure-R 430W
430W · 22.3% efficiency · HJT (Heterojunction)
View full specs →More Comparisons
See how these panels perform in your home
Use our Solar Estimator to calculate system size, installation cost, and payback period — with either of these panels as a starting point.