Solar Panel Comparison
Meyer Burger White 395W vs SunPower/Maxeon Maxeon 3 400W
The Maxeon 3 400W delivers 400W, 5W more than the White 395W at 395W.
Maxeon 3 400W has a higher efficiency of 22.6% versus 21.5% for the White 395W.
They use different cell technologies: White 395W uses HJT with SmartWire (SWCT), while Maxeon 3 400W uses Monocrystalline IBC Gen III.
Here's how they compare across all key specifications.
Full Specification Comparison
| Spec | White 395W | Maxeon 3 400W |
|---|---|---|
| Performance | ||
| Power Output | 395 W | 400 W |
| Efficiency | 21.5% | 22.6% |
| Cell Type | HJT with SmartWire (SWCT) | Monocrystalline IBC Gen III |
| Temp. Coeff. | -0.259 %/°C | -0.27 %/°C |
| Number of Cells | 120 | 104 |
| Bifacial | Yes | No |
| Electrical | ||
| Voc | 44.5 V | 75.6 V |
| Vmp | 38.3 V | 65.2 V |
| Isc | 10.9 A | 6.65 A |
| Imp | 10.3 A | 6.14 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1767x1041x35 mm | 1046x1690x40 mm |
| Weight | 19.7 kg | 19 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4,MC4-Evo2 | Staubli MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 25 years | 25 years |
| Power Warranty | 25 years (93% retained) | 25 years (92% at yr 25, 0.25%/yr degradation) |
| MCS Certified | Yes | No |
| Certifications | IEC 61215, IEC 61730, IEC 62804, IEC 61701 | IEC 61215, IEC 61730, UL 61730 |
Frequently Asked Questions
Which is more efficient, the White 395W or the Maxeon 3 400W?
The Maxeon 3 400W is more efficient at 22.6%, compared to 21.5% for the White 395W. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the White 395W 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 White 395W.
Which solar panel should I choose for my home — the White 395W 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.
Meyer Burger
White 395W
395W · 21.5% efficiency · HJT with SmartWire (SWCT)
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.