Solar Panel Comparison
JA Solar Deep Blue 3.0 420W PERC vs Meyer Burger White 395W
The Deep Blue 3.0 420W PERC delivers 420W, 25W more than the White 395W at 395W.
White 395W has a higher efficiency of 21.5% versus 21% for the Deep Blue 3.0 420W PERC.
They use different cell technologies: Deep Blue 3.0 420W PERC uses Mono PERC MBB Half-Cell, while White 395W uses HJT with SmartWire (SWCT).
Here's how they compare across all key specifications.
Full Specification Comparison
| Spec | Deep Blue 3.0 420W PERC | White 395W |
|---|---|---|
| Performance | ||
| Power Output | 420 W | 395 W |
| Efficiency | 21% | 21.5% |
| Cell Type | Mono PERC MBB Half-Cell | HJT with SmartWire (SWCT) |
| Temp. Coeff. | — | -0.259 %/°C |
| Number of Cells | 108 | 120 |
| Bifacial | No | Yes |
| Electrical | ||
| Voc | — | 44.5 V |
| Vmp | 37.73 V | 38.3 V |
| Isc | — | 10.9 A |
| Imp | — | 10.3 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1762x1134x30 mm | 1767x1041x35 mm |
| Weight | 20 kg | 19.7 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4 | MC4,MC4-Evo2 |
| Junction Box IP | — | IP68 |
| Warranty & Certification | ||
| Product Warranty | 12 years | 25 years |
| Power Warranty | 25 years linear | 25 years (93% retained) |
| MCS Certified | Yes | Yes |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730, IEC 62804, IEC 61701 |
| Pricing (UK) | ||
| Retail Price | £57.81 | — |
| Price per Watt | £0.138/W | — |
Frequently Asked Questions
Which is more efficient, the Deep Blue 3.0 420W PERC or the White 395W?
The White 395W is more efficient at 21.5%, compared to 21% for the Deep Blue 3.0 420W PERC. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Deep Blue 3.0 420W PERC or the White 395W?
The Deep Blue 3.0 420W PERC has a higher rated output at 420W. 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 Deep Blue 3.0 420W PERC or the White 395W?
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.
JA Solar
Deep Blue 3.0 420W PERC
420W · 21% efficiency · Mono PERC MBB Half-Cell
View full specs →Meyer Burger
White 395W
395W · 21.5% efficiency · HJT with SmartWire (SWCT)
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.