Solar Panel Comparison
EcoFlow 400W Rigid Solar Panel All Black vs Viridian Solar Clearline Fusion 340W White Backsheet BIPV
The 400W Rigid Solar Panel All Black delivers 400W, 60W more than the Clearline Fusion 340W White Backsheet BIPV at 340W.
400W Rigid Solar Panel All Black has a higher efficiency of 23% versus 21% for the Clearline Fusion 340W White Backsheet BIPV.
They use different cell technologies: 400W Rigid Solar Panel All Black uses Mono PERC, while Clearline Fusion 340W White Backsheet BIPV uses Mono PERC Half-Cell.
Here's how they compare across all key specifications.
Spec
EcoFlow
400W Rigid Solar Panel All Black
400W
23% efficiency
Viridian Solar
Clearline Fusion 340W White Backsheet BIPV
340W
21% efficiency
Full Specification Comparison
| Spec | 400W Rigid Solar Panel All Black | Clearline Fusion 340W White Backsheet BIPV |
|---|---|---|
| Performance | ||
| Power Output | 400 W | 340 W |
| Efficiency | 23% | 21% |
| Cell Type | Mono PERC | Mono PERC Half-Cell |
| Temp. Coeff. | -0.3 %/°C | -0.35 %/°C |
| Number of Cells | — | 72 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 37.1 V | 42.4 V |
| Vmp | — | 35 V |
| Isc | 13.79 A | 10.4 A |
| Imp | — | 9.7 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1722x1134x35 mm | 1686x1000x69 mm |
| Weight | 21.8 kg | — |
| Frame Colour | Black | Silver |
| Connector Type | EcoFlow Solar Connector | MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 10 | 15 |
| Power Warranty | No output warranty stated | 25 years linear |
| MCS Certified | No | Yes |
| Certifications | IEC 60529 IP68 | IEC 61215, IEC 61730, MCS |
| Pricing (UK) | ||
| Retail Price | £149.50 | — |
| Price per Watt | £0.374/W | — |
Frequently Asked Questions
Which is more efficient, the 400W Rigid Solar Panel All Black or the Clearline Fusion 340W White Backsheet BIPV?
The 400W Rigid Solar Panel All Black is more efficient at 23%, compared to 21% for the Clearline Fusion 340W White Backsheet BIPV. 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 Clearline Fusion 340W White Backsheet BIPV?
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 Clearline Fusion 340W White Backsheet BIPV.
Which solar panel should I choose for my home — the 400W Rigid Solar Panel All Black or the Clearline Fusion 340W White Backsheet BIPV?
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 →Viridian Solar
Clearline Fusion 340W White Backsheet BIPV
340W · 21% efficiency · Mono PERC Half-Cell
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.