Solar Panel Comparison
Canadian Solar TOPBiHiKu7 700W Bifacial vs JA Solar Deep Blue 4.0 N-Type Full Black 450W
The TOPBiHiKu7 700W Bifacial delivers 700W, 250W more than the Deep Blue 4.0 N-Type Full Black 450W at 450W.
TOPBiHiKu7 700W Bifacial has a higher efficiency of 22.5% versus 22% for the Deep Blue 4.0 N-Type Full Black 450W.
They use different cell technologies: TOPBiHiKu7 700W Bifacial uses N-type TOPCon Dual Cell, while Deep Blue 4.0 N-Type Full Black 450W uses N-type TOPCon MBB Half-Cell.
Here's how they compare across all key specifications.
Spec
Canadian Solar
TOPBiHiKu7 700W Bifacial
700W
22.5% efficiency
JA Solar
Deep Blue 4.0 N-Type Full Black 450W
450W
22% efficiency
Full Specification Comparison
| Spec | TOPBiHiKu7 700W Bifacial | Deep Blue 4.0 N-Type Full Black 450W |
|---|---|---|
| Performance | ||
| Power Output | 700 W | 450 W |
| Efficiency | 22.5% | 22% |
| Cell Type | N-type TOPCon Dual Cell | N-type TOPCon MBB Half-Cell |
| Temp. Coeff. | -0.29 %/°C | -0.3 %/°C |
| Number of Cells | 132 | 108 |
| Bifacial | Yes | Yes |
| Electrical | ||
| Voc | 48.3 V | 39.3 V |
| Vmp | 47.9 V | 32.82 V |
| Isc | 17.51 A | 14.48 A |
| Imp | 18.49 A | 13.71 A |
| Max System Voltage | 1500 V | 1500 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 2384x1303x33 mm | 1762x1134x30 mm |
| Weight | 37.8 kg | 22 kg |
| Frame Colour | Silver | Black |
| Connector Type | MC4-EVO2 | Staubli MC4-EVO2 |
| Junction Box IP | IP68 | IP68 |
| Warranty & Certification | ||
| Product Warranty | 12 years | 25 years |
| Power Warranty | 30 years linear (<1% yr1, <0.4%/yr) | 30 years linear |
| MCS Certified | No | Yes |
| Certifications | IEC 61215, IEC 61730, IEC 61701, IEC 62716, IEC 60068, UL 61730, CE, ISO 9001, ISO 14001, ISO 45001 | IEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001 |
| Pricing (UK) | ||
| Retail Price | — | £72.00 |
| Price per Watt | — | £0.160/W |
Frequently Asked Questions
Which is more efficient, the TOPBiHiKu7 700W Bifacial or the Deep Blue 4.0 N-Type Full Black 450W?
The TOPBiHiKu7 700W Bifacial is more efficient at 22.5%, compared to 22% for the Deep Blue 4.0 N-Type Full Black 450W. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the TOPBiHiKu7 700W Bifacial or the Deep Blue 4.0 N-Type Full Black 450W?
The TOPBiHiKu7 700W Bifacial has a higher rated output at 700W. This means fewer panels would be needed to reach the same system size compared to the Deep Blue 4.0 N-Type Full Black 450W.
Which solar panel should I choose for my home — the TOPBiHiKu7 700W Bifacial or the Deep Blue 4.0 N-Type Full Black 450W?
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.
Canadian Solar
TOPBiHiKu7 700W Bifacial
700W · 22.5% efficiency · N-type TOPCon Dual Cell
View full specs →JA Solar
Deep Blue 4.0 N-Type Full Black 450W
450W · 22% efficiency · N-type TOPCon MBB 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.