Solar Panel Comparison
LONGi Hi-MO 6 HTB 440W All Black HPBC vs LONGi Hi-MO X6 Max 505W All Black
The Hi-MO X6 Max 505W All Black delivers 505W, 65W more than the Hi-MO 6 HTB 440W All Black HPBC at 440W.
Hi-MO 6 HTB 440W All Black HPBC has a higher efficiency of 22.5% versus 22.4% for the Hi-MO X6 Max 505W All Black.
They use different cell technologies: Hi-MO 6 HTB 440W All Black HPBC uses HPBC (Hybrid Passivated Back Contact), while Hi-MO X6 Max 505W All Black uses N-type HPBC+.
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 Max 505W All Black
505W
22.4% efficiency
Full Specification Comparison
| Spec | Hi-MO 6 HTB 440W All Black HPBC | Hi-MO X6 Max 505W All Black |
|---|---|---|
| Performance | ||
| Power Output | 440 W | 505 W |
| Efficiency | 22.5% | 22.4% |
| Cell Type | HPBC (Hybrid Passivated Back Contact) | N-type HPBC+ |
| Temp. Coeff. | -0.29 %/°C | -0.29 %/°C |
| Number of Cells | 108 | 144 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 39.83 V | 43.5 V |
| Vmp | 33.56 V | 36.64 V |
| Isc | 14.15 A | 14.77 A |
| Imp | 13.12 A | 13.79 A |
| Max System Voltage | 1500 V | 1500 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1722x1134x30 mm | 1960x1134x30 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 Max 505W All Black?
The Hi-MO 6 HTB 440W All Black HPBC is more efficient at 22.5%, compared to 22.4% for the Hi-MO X6 Max 505W All Black. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Hi-MO 6 HTB 440W All Black HPBC or the Hi-MO X6 Max 505W All Black?
The Hi-MO X6 Max 505W All Black has a higher rated output at 505W. This means fewer panels would be needed to reach the same system size compared to the Hi-MO 6 HTB 440W 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 Max 505W All Black?
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 Max 505W All Black
505W · 22.4% efficiency · N-type HPBC+
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.