Seraphim Solar — China
SRP 390W B Plus
The Seraphim Solar SRP 390W B Plus is a 390W PERC solar panel with 19.1% efficiency. Backed by a 12-year warranty.
Standard TierFEOC: RestrictedBifacial
390W
Wattage
19.1%
Efficiency
PERC
Cell Type
12 years
Warranty
Full Specifications
- Brand
- Seraphim Solar
- Model
- SRP 390W B Plus
- Series
- SRP
- Wattage
- 390W
- Module Efficiency
- 19.1%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 44 lbs
- Warranty
- 12 years
- Est. Price Per Watt
- $1.98
- Est. 7kW System Cost
- $13,860
- Est. 10kW System Cost
- $19,800
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- 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 |
|---|---|---|---|
| Panasonic EverVolt 420W A Ultra | 420W | 22.3% | $4.08 |
| Panasonic EverVolt 420W D Plus | 420W | 22.3% | $4.08 |
| Panasonic EverVolt VK 420W A Ultra | 420W | 22.3% | $4.08 |
| Panasonic EverVolt VK 420W D Plus | 420W | 22.3% | $4.08 |
Frequently Asked Questions
How much does a 390W Seraphim Solar SRP 390W B Plus cost?
The Seraphim Solar SRP 390W B Plus costs approximately $772 per panel ($$1.98/W). A typical 7kW system using this panel would cost around $13,860 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 SRP 390W B Plus a good solar panel?
The Seraphim Solar SRP 390W B Plus has 19.1% 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 SRP 390W B Plus panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 26 panels. The exact number depends on your roof space, energy usage, and local sun hours.