Solar Panel Comparison
EcoFlow 400W Rigid Solar Panel All Black vs Renogy N-Type 320W Monocrystalline Solar Panel (2-Pack)
The 400W Rigid Solar Panel All Black delivers 400W, 80W more than the N-Type 320W Monocrystalline Solar Panel (2-Pack) at 320W.
400W Rigid Solar Panel All Black has a higher efficiency of 23% versus 22.2% for the N-Type 320W Monocrystalline Solar Panel (2-Pack).
They use different cell technologies: 400W Rigid Solar Panel All Black uses Mono PERC, while N-Type 320W Monocrystalline Solar Panel (2-Pack) uses N-type Monocrystalline 18BB.
On price, the 400W Rigid Solar Panel All Black is cheaper by £171.49.
Here's how they compare across all key specifications.
Spec
EcoFlow
400W Rigid Solar Panel All Black
400W
23% efficiency
Renogy
N-Type 320W Monocrystalline Solar Panel (2-Pack)
320W
22.2% efficiency
Full Specification Comparison
| Spec | 400W Rigid Solar Panel All Black | N-Type 320W Monocrystalline Solar Panel (2-Pack) |
|---|---|---|
| Performance | ||
| Power Output | 400 W | 320 W |
| Efficiency | 23% | 22.2% |
| Cell Type | Mono PERC | N-type Monocrystalline 18BB |
| Temp. Coeff. | -0.3 %/°C | -0.29 %/°C |
| Bifacial | No | No |
| Electrical | ||
| Voc | 37.1 V | 43.82 V |
| Vmp | — | 37.85 V |
| Isc | 13.79 A | 8.92 A |
| Imp | — | 8.46 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1722x1134x35 mm | 1640x880x35 mm |
| Weight | 21.8 kg | — |
| Frame Colour | Black | Silver |
| Connector Type | EcoFlow Solar Connector | MC4 |
| Junction Box IP | IP68 | IP68 |
| Warranty & Certification | ||
| Product Warranty | 10 | 10 |
| Power Warranty | No output warranty stated | 25 years (power) |
| MCS Certified | No | No |
| Certifications | IEC 60529 IP68 | IEC 61215, IEC 61730 |
| Pricing (UK) | ||
| Retail Price | £149.50 | £320.99 |
| Price per Watt | £0.374/W | £1.003/W |
Frequently Asked Questions
Which is more efficient, the 400W Rigid Solar Panel All Black or the N-Type 320W Monocrystalline Solar Panel (2-Pack)?
The 400W Rigid Solar Panel All Black is more efficient at 23%, 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 400W Rigid Solar Panel All Black or the N-Type 320W Monocrystalline Solar Panel (2-Pack)?
The 400W Rigid Solar Panel All Black 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).
Is the 400W Rigid Solar Panel All Black or N-Type 320W Monocrystalline Solar Panel (2-Pack) better value for money?
The 400W Rigid Solar Panel All Black is priced lower at £149.50 per panel, saving £171.49 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 N-Type 320W Monocrystalline Solar Panel (2-Pack)?
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 →Renogy
N-Type 320W Monocrystalline Solar Panel (2-Pack)
320W · 22.2% efficiency · N-type Monocrystalline 18BB
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.