Solar Panel Comparison
Perlight Solar Delta 425W Total Black Mono PERC vs Risen Energy Titan S 400W Full Black
The Delta 425W Total Black Mono PERC delivers 425W, 25W more than the Titan S 400W Full Black at 400W.
Delta 425W Total Black Mono PERC has a higher efficiency of 21.4% versus 20.8% for the Titan S 400W Full Black.
They use different cell technologies: Delta 425W Total Black Mono PERC uses Mono PERC, while Titan S 400W Full Black uses Mono PERC MBB Half-Cell.
Here's how they compare across all key specifications.
Spec
Perlight Solar
Delta 425W Total Black Mono PERC
425W
21.4% efficiency
Risen Energy
Titan S 400W Full Black
400W
20.8% efficiency
Full Specification Comparison
| Spec | Delta 425W Total Black Mono PERC | Titan S 400W Full Black |
|---|---|---|
| Performance | ||
| Power Output | 425 W | 400 W |
| Efficiency | 21.4% | 20.8% |
| Cell Type | Mono PERC | Mono PERC MBB Half-Cell |
| Temp. Coeff. | -0.35 %/°C | -0.34 %/°C |
| Number of Cells | 108 | 120 |
| Bifacial | No | No |
| Electrical | ||
| Voc | — | 41.3 V |
| Vmp | — | 34.39 V |
| Isc | — | 12.34 A |
| Imp | — | 11.64 A |
| Max System Voltage | 1500 V | 1500 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1812x1096x30 mm | 1754x1096x30 mm |
| Weight | 20.8 kg | 21.5 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4 | MC4 compatible |
| Junction Box IP | — | IP68 |
| Warranty & Certification | ||
| Product Warranty | 30 | 12 years |
| Power Warranty | 30 years linear (2% yr1, 0.55%/yr) | 25 years linear (84.8% yr25) |
| MCS Certified | Yes | No |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001 |
| Pricing (UK) | ||
| Retail Price | £86.39 | — |
| Price per Watt | £0.203/W | — |
Frequently Asked Questions
Which is more efficient, the Delta 425W Total Black Mono PERC or the Titan S 400W Full Black?
The Delta 425W Total Black Mono PERC is more efficient at 21.4%, compared to 20.8% for the Titan S 400W Full Black. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Delta 425W Total Black Mono PERC or the Titan S 400W Full Black?
The Delta 425W Total Black Mono PERC has a higher rated output at 425W. This means fewer panels would be needed to reach the same system size compared to the Titan S 400W Full Black.
Which solar panel should I choose for my home — the Delta 425W Total Black Mono PERC or the Titan S 400W Full 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.
Perlight Solar
Delta 425W Total Black Mono PERC
425W · 21.4% efficiency · Mono PERC
View full specs →Risen Energy
Titan S 400W Full Black
400W · 20.8% efficiency · Mono PERC 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.