Seraphim Solar — China
Sephia 380W B Black
The Seraphim Solar Sephia 380W B Black is a 380W N-Type TOPCon solar panel with 18.8% efficiency. Backed by a 12-year warranty.
Standard TierFEOC: Restricted
380W
Wattage
18.8%
Efficiency
N-Type TOPCon
Cell Type
12 years
Warranty
Full Specifications
- Brand
- Seraphim Solar
- Model
- Sephia 380W B Black
- Series
- Sephia
- Wattage
- 380W
- Module Efficiency
- 18.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 65-67" x 39-40"
- Weight
- 43 lbs
- Warranty
- 12 years
- Est. Price Per Watt
- $1.89
- Est. 7kW System Cost
- $13,230
- Est. 10kW System Cost
- $18,900
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- China
- FEOC Status
- fail
Other Seraphim Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| SRP 455W D | 455W | 21.1% | PERC | $2.58 |
| Sephia 455W D | 455W | 21.1% | PERC | $2.58 |
| SRP 450W C All-Black | 450W | 21% | N-Type TOPCon | $2.55 |
| Sephia 450W C All-Black | 450W | 21% | N-Type TOPCon | $2.55 |
| SRP 440W E Pro | 440W | 20.7% | N-Type TOPCon | $2.46 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 410W A All-Black | 410W | 21.9% | $4.08 |
| SunPower Maxeon 410W B | 410W | 21.9% | $4.08 |
| SunPower Maxeon 410W D HD | 410W | 21.9% | $4.08 |
| SunPower Performance 410W A All-Black | 410W | 21.9% | $4.08 |
Frequently Asked Questions
How much does a 380W Seraphim Solar Sephia 380W B Black cost?
The Seraphim Solar Sephia 380W B Black costs approximately $718 per panel ($$1.89/W). A typical 7kW system using this panel would cost around $13,230 before incentives.
⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.
Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →
Is the Seraphim Solar Sephia 380W B Black a good solar panel?
The Seraphim Solar Sephia 380W B Black has 18.8% efficiency and a 12 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Seraphim Solar Sephia 380W B Black panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 27 panels. The exact number depends on your roof space, energy usage, and local sun hours.