Solar Panel Comparison
EcoFlow 400W Rigid Solar Panel All Black vs REC Group Alpha Pure-R 430W
The Alpha Pure-R 430W delivers 430W, 30W more than the 400W Rigid Solar Panel All Black at 400W.
400W Rigid Solar Panel All Black has a higher efficiency of 23% versus 22.3% for the Alpha Pure-R 430W.
They use different cell technologies: 400W Rigid Solar Panel All Black uses Mono PERC, while Alpha Pure-R 430W uses HJT (Heterojunction).
On price, the Alpha Pure-R 430W is cheaper by £7.50.
Here's how they compare across all key specifications.
Spec
EcoFlow
400W Rigid Solar Panel All Black
400W
23% efficiency
REC Group
Alpha Pure-R 430W
430W
22.3% efficiency
Full Specification Comparison
| Spec | 400W Rigid Solar Panel All Black | Alpha Pure-R 430W |
|---|---|---|
| Performance | ||
| Power Output | 400 W | 430 W |
| Efficiency | 23% | 22.3% |
| Cell Type | Mono PERC | HJT (Heterojunction) |
| Temp. Coeff. | -0.3 %/°C | -0.24 %/°C |
| Number of Cells | — | 80 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 37.1 V | 59.4 V |
| Vmp | — | 50 V |
| Isc | 13.79 A | 8.91 A |
| Imp | — | 8.4 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1722x1134x35 mm | 1730x1118x30 mm |
| Weight | 21.8 kg | 21.5 kg |
| Frame Colour | Black | Black |
| Connector Type | EcoFlow Solar Connector | MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 10 | 20 years |
| Power Warranty | No output warranty stated | 25 years (92% min, 0.25%/yr) |
| MCS Certified | No | Yes |
| Certifications | IEC 60529 IP68 | IEC 61215, IEC 61730, RoHS |
| Pricing (UK) | ||
| Retail Price | £149.50 | £142.00 |
| Price per Watt | £0.374/W | £0.330/W |
Frequently Asked Questions
Which is more efficient, the 400W Rigid Solar Panel All Black or the Alpha Pure-R 430W?
The 400W Rigid Solar Panel All Black is more efficient at 23%, 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 400W Rigid Solar Panel 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 400W Rigid Solar Panel All Black.
Is the 400W Rigid Solar Panel All Black or Alpha Pure-R 430W better value for money?
The Alpha Pure-R 430W is priced lower at £142.00 per panel, saving £7.50 per panel. However, value depends on the full system cost, efficiency, and warranty — use our solar cost calculator to compare total installation costs.
Which solar panel should I choose for my home — the 400W Rigid Solar Panel 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.
EcoFlow
400W Rigid Solar Panel All Black
400W · 23% efficiency · Mono PERC
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.