Solar Panel Comparison
LONGi Hi-MO 6 HTB 440W All Black HPBC vs LONGi Hi-MO X6 425W All-Black HPBC
The Hi-MO 6 HTB 440W All Black HPBC delivers 440W, 15W more than the Hi-MO X6 425W All-Black HPBC at 425W.
Both panels share the same 22.5% efficiency rating.
Both use HPBC (Hybrid Passivated Back Contact) cell technology.
Here's how they compare across all key specifications.
Spec
LONGi
Hi-MO 6 HTB 440W All Black HPBC
440W
22.5% efficiency
LONGi
Hi-MO X6 425W All-Black HPBC
425W
22.5% efficiency
Full Specification Comparison
| Spec | Hi-MO 6 HTB 440W All Black HPBC | Hi-MO X6 425W All-Black HPBC |
|---|---|---|
| Performance | ||
| Power Output | 440 W | 425 W |
| Efficiency | 22.5% | 22.5% |
| Cell Type | HPBC (Hybrid Passivated Back Contact) | HPBC (Hybrid Passivated Back Contact) |
| Temp. Coeff. | -0.29 %/°C | -0.29 %/°C |
| Number of Cells | 108 | 108 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 39.83 V | 39.23 V |
| Vmp | 33.56 V | 32.96 V |
| Isc | 14.15 A | 13.93 A |
| Imp | 13.12 A | 12.9 A |
| Max System Voltage | 1500 V | 1500 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1722x1134x30 mm | 1722x1134x30 mm |
| Weight | 20.8 kg | — |
| Frame Colour | Black | Black |
| Connector Type | MC4 | MC4 |
| Warranty & Certification | ||
| Product Warranty | 25 | 25 |
| Power Warranty | 25 years linear | 25 years linear |
| MCS Certified | Yes | Yes |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730 |
Frequently Asked Questions
Which is more efficient, the Hi-MO 6 HTB 440W All Black HPBC or the Hi-MO X6 425W All-Black HPBC?
Both the Hi-MO 6 HTB 440W All Black HPBC and Hi-MO X6 425W All-Black HPBC have the same efficiency rating of 22.5%.
Which panel produces more power, the Hi-MO 6 HTB 440W All Black HPBC or the Hi-MO X6 425W All-Black HPBC?
The Hi-MO 6 HTB 440W All Black HPBC has a higher rated output at 440W. This means fewer panels would be needed to reach the same system size compared to the Hi-MO X6 425W All-Black HPBC.
Which solar panel should I choose for my home — the Hi-MO 6 HTB 440W All Black HPBC or the Hi-MO X6 425W All-Black HPBC?
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.
LONGi
Hi-MO 6 HTB 440W All Black HPBC
440W · 22.5% efficiency · HPBC (Hybrid Passivated Back Contact)
View full specs →LONGi
Hi-MO X6 425W All-Black HPBC
425W · 22.5% efficiency · HPBC (Hybrid Passivated Back Contact)
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.