LG — South Korea
NeON-40 HD
The LG NeON-40 HD is a 400W N-Type solar panel with 20.8% efficiency. Backed by a 25-year warranty.
Discontinued panel — still supported for existing owners. LG exited solar panel manufacturing in February 2022 Specs below reflect the final production version.
Premium Tier
400W
Wattage
20.8%
Efficiency
N-Type
Cell Type
25 years
Warranty
Full Specifications
- Brand
- LG
- Model
- NeON-40 HD
- Series
- NeON
- Wattage
- 400W
- Module Efficiency
- 20.8%
- Cell Type
- N-Type
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $3.40
- Est. 7kW System Cost
- $23,800
- Est. 10kW System Cost
- $34,000
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- South Korea
- FEOC Status
- check
Other LG Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| NeON 435W E Pro | 435W | 22.2% | N-Type | $4.10 |
| NeON 430W D Plus | 430W | 22% | N-Type | $4.00 |
| NeON 425W C | 425W | 21.8% | N-Type | $3.90 |
| NeON 425W A Ultra | 425W | 21.8% | N-Type | $3.90 |
| NeON 420W E Max | 420W | 21.6% | N-Type | $3.80 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 430W E Max | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W C Black | 430W | 22.6% | $4.38 |
| Panasonic HIT 425W E Pro | 425W | 22.5% | $4.18 |
| Maxeon 3 430W E HC | 430W | 22.5% | $4.19 |
Frequently Asked Questions
How much does a 400W LG NeON-40 HD cost?
The LG NeON-40 HD costs approximately $1360 per panel ($$3.40/W). A typical 7kW system using this panel would cost around $23,800 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 LG NeON-40 HD a good solar panel?
The LG NeON-40 HD has 20.8% efficiency and a 25 years warranty, placing it in the premium tier. This is a solid mid-range panel suitable for most residential installations.
How many LG NeON-40 HD 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.