Solar Panel Comparison
SunPower/Maxeon Maxeon 3 400W vs Viridian Solar Clearline Fusion 340W White Backsheet BIPV
The Maxeon 3 400W delivers 400W, 60W more than the Clearline Fusion 340W White Backsheet BIPV at 340W.
Maxeon 3 400W has a higher efficiency of 22.6% versus 21% for the Clearline Fusion 340W White Backsheet BIPV.
They use different cell technologies: Maxeon 3 400W uses Monocrystalline IBC Gen III, while Clearline Fusion 340W White Backsheet BIPV uses Mono PERC Half-Cell.
Here's how they compare across all key specifications.
Spec
SunPower/Maxeon
Maxeon 3 400W
400W
22.6% efficiency
Viridian Solar
Clearline Fusion 340W White Backsheet BIPV
340W
21% efficiency
Full Specification Comparison
| Spec | Maxeon 3 400W | Clearline Fusion 340W White Backsheet BIPV |
|---|---|---|
| Performance | ||
| Power Output | 400 W | 340 W |
| Efficiency | 22.6% | 21% |
| Cell Type | Monocrystalline IBC Gen III | Mono PERC Half-Cell |
| Temp. Coeff. | -0.27 %/°C | -0.35 %/°C |
| Number of Cells | 104 | 72 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 75.6 V | 42.4 V |
| Vmp | 65.2 V | 35 V |
| Isc | 6.65 A | 10.4 A |
| Imp | 6.14 A | 9.7 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1046x1690x40 mm | 1686x1000x69 mm |
| Weight | 19 kg | — |
| Frame Colour | Black | Silver |
| Connector Type | Staubli MC4 | MC4 |
| Warranty & Certification | ||
| Product Warranty | 25 years | 15 |
| Power Warranty | 25 years (92% at yr 25, 0.25%/yr degradation) | 25 years linear |
| MCS Certified | No | Yes |
| Certifications | IEC 61215, IEC 61730, UL 61730 | IEC 61215, IEC 61730, MCS |
Frequently Asked Questions
Which is more efficient, the Maxeon 3 400W or the Clearline Fusion 340W White Backsheet BIPV?
The Maxeon 3 400W is more efficient at 22.6%, 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 Maxeon 3 400W or the Clearline Fusion 340W White Backsheet BIPV?
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 Clearline Fusion 340W White Backsheet BIPV.
Which solar panel should I choose for my home — the Maxeon 3 400W 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.
SunPower/Maxeon
Maxeon 3 400W
400W · 22.6% efficiency · Monocrystalline IBC Gen III
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.