JA Solar — China
JAM 400W D HC
The JA Solar JAM 400W D HC is a 400W PERC solar panel with 19.4% efficiency. Backed by a 25-year warranty.
Standard TierFEOC: Restricted
400W
Wattage
19.4%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- JA Solar
- Model
- JAM 400W D HC
- Series
- JAM
- Wattage
- 400W
- Module Efficiency
- 19.4%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $1.89
- Est. 7kW System Cost
- $13,230
- Est. 10kW System Cost
- $18,900
- Temperature Coefficient
- -0.35%/°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 |
| DeepBlue 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM72 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM54 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| DeepBlue 3.0 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 430W E Max | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W B All-Black | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W C Black | 430W | 22.6% | $4.38 |
| SunPower Performance 430W E Max | 430W | 22.6% | $4.38 |
Frequently Asked Questions
How much does a 400W JA Solar JAM 400W D HC cost?
The JA Solar JAM 400W D HC costs approximately $756 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 JA Solar JAM 400W D HC a good solar panel?
The JA Solar JAM 400W D HC has 19.4% 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 400W D HC panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 25 panels. The exact number depends on your roof space, energy usage, and local sun hours.