Solar Panel Comparison
Renogy N-Type 320W Monocrystalline Solar Panel (2-Pack) vs SunPower/Maxeon Maxeon 3 400W
The Maxeon 3 400W delivers 400W, 80W more than the N-Type 320W Monocrystalline Solar Panel (2-Pack) at 320W.
Maxeon 3 400W has a higher efficiency of 22.6% versus 22.2% for the N-Type 320W Monocrystalline Solar Panel (2-Pack).
They use different cell technologies: N-Type 320W Monocrystalline Solar Panel (2-Pack) uses N-type Monocrystalline 18BB, while Maxeon 3 400W uses Monocrystalline IBC Gen III.
Here's how they compare across all key specifications.
Spec
Renogy
N-Type 320W Monocrystalline Solar Panel (2-Pack)
320W
22.2% efficiency
SunPower/Maxeon
Maxeon 3 400W
400W
22.6% efficiency
Full Specification Comparison
| Spec | N-Type 320W Monocrystalline Solar Panel (2-Pack) | Maxeon 3 400W |
|---|---|---|
| Performance | ||
| Power Output | 320 W | 400 W |
| Efficiency | 22.2% | 22.6% |
| Cell Type | N-type Monocrystalline 18BB | Monocrystalline IBC Gen III |
| Temp. Coeff. | -0.29 %/°C | -0.27 %/°C |
| Number of Cells | — | 104 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 43.82 V | 75.6 V |
| Vmp | 37.85 V | 65.2 V |
| Isc | 8.92 A | 6.65 A |
| Imp | 8.46 A | 6.14 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1640x880x35 mm | 1046x1690x40 mm |
| Weight | — | 19 kg |
| Frame Colour | Silver | Black |
| Connector Type | MC4 | Staubli MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 10 | 25 years |
| Power Warranty | 25 years (power) | 25 years (92% at yr 25, 0.25%/yr degradation) |
| MCS Certified | No | No |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730, UL 61730 |
| Pricing (UK) | ||
| Retail Price | £320.99 | — |
| Price per Watt | £1.003/W | — |
Frequently Asked Questions
Which is more efficient, the N-Type 320W Monocrystalline Solar Panel (2-Pack) or the Maxeon 3 400W?
The Maxeon 3 400W is more efficient at 22.6%, compared to 22.2% for the N-Type 320W Monocrystalline Solar Panel (2-Pack). Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the N-Type 320W Monocrystalline Solar Panel (2-Pack) or the Maxeon 3 400W?
The Maxeon 3 400W has a higher rated output at 400W. This means fewer panels would be needed to reach the same system size compared to the N-Type 320W Monocrystalline Solar Panel (2-Pack).
Which solar panel should I choose for my home — the N-Type 320W Monocrystalline Solar Panel (2-Pack) 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.
Renogy
N-Type 320W Monocrystalline Solar Panel (2-Pack)
320W · 22.2% efficiency · N-type Monocrystalline 18BB
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.