Solar Panel Comparison
JA Solar DeepBlue 4.0 500W Bifacial Commercial vs REC Group Alpha Pure-R 430W
The DeepBlue 4.0 500W Bifacial Commercial delivers 500W, 70W more than the Alpha Pure-R 430W at 430W.
Alpha Pure-R 430W has a higher efficiency of 22.3% versus 21.5% for the DeepBlue 4.0 500W Bifacial Commercial.
They use different cell technologies: DeepBlue 4.0 500W Bifacial Commercial uses N-type TOPCon MBB Half-Cell, while Alpha Pure-R 430W uses HJT (Heterojunction).
Here's how they compare across all key specifications.
Spec
JA Solar
DeepBlue 4.0 500W Bifacial Commercial
500W
21.5% efficiency
REC Group
Alpha Pure-R 430W
430W
22.3% efficiency
Full Specification Comparison
| Spec | DeepBlue 4.0 500W Bifacial Commercial | Alpha Pure-R 430W |
|---|---|---|
| Performance | ||
| Power Output | 500 W | 430 W |
| Efficiency | 21.5% | 22.3% |
| Cell Type | N-type TOPCon MBB Half-Cell | HJT (Heterojunction) |
| Temp. Coeff. | -0.3 %/°C | -0.24 %/°C |
| Number of Cells | 144 | 80 |
| Bifacial | Yes | No |
| Electrical | ||
| Voc | 43.2 V | 59.4 V |
| Vmp | 36 V | 50 V |
| Isc | 15.01 A | 8.91 A |
| Imp | 13.9 A | 8.4 A |
| Max System Voltage | 1500 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 2108x1048x35 mm | 1730x1118x30 mm |
| Weight | — | 21.5 kg |
| Frame Colour | Silver | Black |
| Connector Type | MC4 | MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 25 | 20 years |
| Power Warranty | 30 years linear | 25 years (92% min, 0.25%/yr) |
| MCS Certified | No | Yes |
| Certifications | IEC 61215, IEC 61730 | 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 500W Bifacial Commercial or the Alpha Pure-R 430W?
The Alpha Pure-R 430W is more efficient at 22.3%, compared to 21.5% for the DeepBlue 4.0 500W Bifacial Commercial. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the DeepBlue 4.0 500W Bifacial Commercial or the Alpha Pure-R 430W?
The DeepBlue 4.0 500W Bifacial Commercial has a higher rated output at 500W. 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 500W Bifacial Commercial 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 500W Bifacial Commercial
500W · 21.5% efficiency · N-type TOPCon MBB Half-Cell
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.