Solar Panel Comparison
JA Solar DeepBlue 4.0 Pro 580W Bifacial vs REC Group Alpha Pure-R 430W
The DeepBlue 4.0 Pro 580W Bifacial delivers 580W, 150W more than the Alpha Pure-R 430W at 430W.
DeepBlue 4.0 Pro 580W Bifacial has a higher efficiency of 22.5% versus 22.3% for the Alpha Pure-R 430W.
They use different cell technologies: DeepBlue 4.0 Pro 580W Bifacial uses N-type TOPCon 182mm, while Alpha Pure-R 430W uses HJT (Heterojunction).
Here's how they compare across all key specifications.
Spec
JA Solar
DeepBlue 4.0 Pro 580W Bifacial
580W
22.5% efficiency
REC Group
Alpha Pure-R 430W
430W
22.3% efficiency
Full Specification Comparison
| Spec | DeepBlue 4.0 Pro 580W Bifacial | Alpha Pure-R 430W |
|---|---|---|
| Performance | ||
| Power Output | 580 W | 430 W |
| Efficiency | 22.5% | 22.3% |
| Cell Type | N-type TOPCon 182mm | HJT (Heterojunction) |
| Temp. Coeff. | -0.3 %/°C | -0.24 %/°C |
| Number of Cells | 144 | 80 |
| Bifacial | Yes | No |
| Electrical | ||
| Voc | 51.3 V | 59.4 V |
| Vmp | 43.03 V | 50 V |
| Isc | 14.36 A | 8.91 A |
| Imp | 13.48 A | 8.4 A |
| Max System Voltage | 1500 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 2278x1134x30 mm | 1730x1118x30 mm |
| Weight | 31.8 kg | 21.5 kg |
| Frame Colour | Silver | Black |
| Connector Type | MC4 | MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 12 years | 20 years |
| Power Warranty | 30 years linear (0.4%/yr) | 25 years (92% min, 0.25%/yr) |
| MCS Certified | Yes | Yes |
| Certifications | IEC 61215, IEC 61730, IEC 61701, IEC 62716, CE, TUV SUD, TUV NORD | 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 DeepBlue 4.0 Pro 580W Bifacial or the Alpha Pure-R 430W?
The DeepBlue 4.0 Pro 580W Bifacial is more efficient at 22.5%, compared to 22.3% for the Alpha Pure-R 430W. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the DeepBlue 4.0 Pro 580W Bifacial or the Alpha Pure-R 430W?
The DeepBlue 4.0 Pro 580W Bifacial has a higher rated output at 580W. This means fewer panels would be needed to reach the same system size compared to the Alpha Pure-R 430W.
Which solar panel should I choose for my home — the DeepBlue 4.0 Pro 580W Bifacial 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.
JA Solar
DeepBlue 4.0 Pro 580W Bifacial
580W · 22.5% efficiency · N-type TOPCon 182mm
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.