JA Solar — China
JAM 385W Pro
The JA Solar JAM 385W Pro is a 385W N-Type TOPCon solar panel with 18.8% efficiency. Backed by a 25-year warranty.
Standard TierFEOC: Restricted
385W
Wattage
18.8%
Efficiency
N-Type TOPCon
Cell Type
25 years
Warranty
Full Specifications
- Brand
- JA Solar
- Model
- JAM 385W Pro
- Series
- JAM
- Wattage
- 385W
- Module Efficiency
- 18.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 65-67" x 39-40"
- Weight
- 43 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $1.75
- Est. 7kW System Cost
- $12,250
- Est. 10kW System Cost
- $17,500
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- China
- FEOC Status
- fail
Other JA Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| JAM 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM 480W C All-Black | 480W | 22.6% | PERC | $2.64 |
| JAM 470W B BF | 470W | 22.2% | N-Type TOPCon | $2.55 |
| JAM 470W E Pro | 470W | 22.2% | PERC | $2.55 |
| JAM 465W A HC | 465W | 22% | PERC | $2.50 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Panasonic HIT 415W C | 415W | 22% | $3.94 |
| Panasonic HIT 415W E Max | 415W | 22% | $3.94 |
| SunPower Maxeon 415W C Plus | 415W | 22% | $4.12 |
| SunPower Maxeon 415W B Ultra | 415W | 22% | $4.12 |
Frequently Asked Questions
How much does a 385W JA Solar JAM 385W Pro cost?
The JA Solar JAM 385W Pro costs approximately $674 per panel ($$1.75/W). A typical 7kW system using this panel would cost around $12,250 before incentives.
⚠ The 30% federal solar tax credit has ended — Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed 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 JA Solar JAM 385W Pro a good solar panel?
The JA Solar JAM 385W Pro has 18.8% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many JA Solar JAM 385W Pro panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 26 panels. The exact number depends on your roof space, energy usage, and local sun hours.