Solar Panel Comparison
REC Group Alpha Pure-R 430W vs SunPower/Maxeon Maxeon 3 400W
The Alpha Pure-R 430W delivers 430W, 30W more than the Maxeon 3 400W at 400W.
Maxeon 3 400W has a higher efficiency of 22.6% versus 22.3% for the Alpha Pure-R 430W.
They use different cell technologies: Alpha Pure-R 430W uses HJT (Heterojunction), while Maxeon 3 400W uses Monocrystalline IBC Gen III.
Here's how they compare across all key specifications.
Full Specification Comparison
| Spec | Alpha Pure-R 430W | Maxeon 3 400W |
|---|---|---|
| Performance | ||
| Power Output | 430 W | 400 W |
| Efficiency | 22.3% | 22.6% |
| Cell Type | HJT (Heterojunction) | Monocrystalline IBC Gen III |
| Temp. Coeff. | -0.24 %/°C | -0.27 %/°C |
| Number of Cells | 80 | 104 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 59.4 V | 75.6 V |
| Vmp | 50 V | 65.2 V |
| Isc | 8.91 A | 6.65 A |
| Imp | 8.4 A | 6.14 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1730x1118x30 mm | 1046x1690x40 mm |
| Weight | 21.5 kg | 19 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4 | Staubli MC4 |
| Warranty & Certification | ||
| Product Warranty | 20 years | 25 years |
| Power Warranty | 25 years (92% min, 0.25%/yr) | 25 years (92% at yr 25, 0.25%/yr degradation) |
| MCS Certified | Yes | No |
| Certifications | IEC 61215, IEC 61730, RoHS | IEC 61215, IEC 61730, UL 61730 |
| Pricing (UK) | ||
| Retail Price | £142.00 | — |
| Price per Watt | £0.330/W | — |
Frequently Asked Questions
Which is more efficient, the Alpha Pure-R 430W or the Maxeon 3 400W?
The Maxeon 3 400W is more efficient at 22.6%, 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 Alpha Pure-R 430W or the Maxeon 3 400W?
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 Maxeon 3 400W.
Which solar panel should I choose for my home — the Alpha Pure-R 430W or the Maxeon 3 400W?
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.
REC Group
Alpha Pure-R 430W
430W · 22.3% efficiency · HJT (Heterojunction)
View full specs →SunPower/Maxeon
Maxeon 3 400W
400W · 22.6% efficiency · Monocrystalline IBC Gen III
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.