Solar Panel Comparison
Q CELLS (Hanwha) Q.TRON BLACK S-G3R.12+ BFG 445W vs SunPower/Maxeon Maxeon 3 400W
The Q.TRON BLACK S-G3R.12+ BFG 445W delivers 445W, 45W more than the Maxeon 3 400W at 400W.
Maxeon 3 400W has a higher efficiency of 22.6% versus 22.3% for the Q.TRON BLACK S-G3R.12+ BFG 445W.
They use different cell technologies: Q.TRON BLACK S-G3R.12+ BFG 445W uses N-type Q.ANTUM NEO Half-Cut, while Maxeon 3 400W uses Monocrystalline IBC Gen III.
Here's how they compare across all key specifications.
Spec
Q CELLS (Hanwha)
Q.TRON BLACK S-G3R.12+ BFG 445W
445W
22.3% efficiency
SunPower/Maxeon
Maxeon 3 400W
400W
22.6% efficiency
Full Specification Comparison
| Spec | Q.TRON BLACK S-G3R.12+ BFG 445W | Maxeon 3 400W |
|---|---|---|
| Performance | ||
| Power Output | 445 W | 400 W |
| Efficiency | 22.3% | 22.6% |
| Cell Type | N-type Q.ANTUM NEO Half-Cut | Monocrystalline IBC Gen III |
| Temp. Coeff. | -0.28 %/°C | -0.27 %/°C |
| Number of Cells | 96 | 104 |
| Bifacial | Yes | No |
| Electrical | ||
| Voc | 34.85 V | 75.6 V |
| Vmp | 29.9 V | 65.2 V |
| Isc | 16 A | 6.65 A |
| Imp | 14.89 A | 6.14 A |
| Max System Voltage | 1500 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1762x1134x30 mm | 1046x1690x40 mm |
| Weight | 20.9 kg | 19 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4-EVO2 | Staubli MC4 |
| Junction Box IP | IP68 | — |
| Warranty & Certification | ||
| Product Warranty | 25 years | 25 years |
| Power Warranty | 30 years linear (98.5% yr1, 88.93% yr30) | 25 years (92% at yr 25, 0.25%/yr degradation) |
| MCS Certified | Yes | No |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730, UL 61730 |
Frequently Asked Questions
Which is more efficient, the Q.TRON BLACK S-G3R.12+ BFG 445W or the Maxeon 3 400W?
The Maxeon 3 400W is more efficient at 22.6%, compared to 22.3% for the Q.TRON BLACK S-G3R.12+ BFG 445W. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Q.TRON BLACK S-G3R.12+ BFG 445W or the Maxeon 3 400W?
The Q.TRON BLACK S-G3R.12+ BFG 445W has a higher rated output at 445W. This means fewer panels would be needed to reach the same system size compared to the Maxeon 3 400W.
Which solar panel should I choose for my home — the Q.TRON BLACK S-G3R.12+ BFG 445W 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.
Q CELLS (Hanwha)
Q.TRON BLACK S-G3R.12+ BFG 445W
445W · 22.3% efficiency · N-type Q.ANTUM NEO Half-Cut
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.