LG — South Korea

NeON 2 405W B

The LG NeON 2 405W B is a 405W N-Type solar panel with 21.0% efficiency. Backed by a 25-year warranty.

Premium Tier

405W

Wattage

21%

Efficiency

N-Type

Cell Type

25 years

Warranty

Full Specifications

Brand
LG
Model
NeON 2 405W B
Series
NeON 2
Wattage
405W
Module Efficiency
21%
Cell Type
N-Type
Dimensions
66-80" x 39-41"
Weight
46 lbs
Warranty
25 years
Est. Price Per Watt
$3.50
Est. 7kW System Cost
$24,500
Est. 10kW System Cost
$35,000
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
South Korea
FEOC Status
check

Other LG Panels

ModelWattageEfficiencyCell$/W
NeON 435W E Pro435W22.2%N-Type$4.10
NeON R 435W E Pro435W22.2%N-Type$4.10
NeON 2 435W E Pro435W22.2%N-Type$4.10
NeON H 435W E Pro435W22.2%N-Type$4.10
NeON 430W D Plus430W22%N-Type$4.00

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 435W A Ultra435W22.7%$4.42
SunPower Performance 435W A Ultra435W22.7%$4.42
SunPower X-Series 435W A Ultra435W22.7%$4.42
SunPower E-Series 435W A Ultra435W22.7%$4.42

Frequently Asked Questions

How much does a 405W LG NeON 2 405W B cost?
The LG NeON 2 405W B costs approximately $1418 per panel ($$3.50/W). A typical 7kW system using this panel would cost around $24,500 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 LG NeON 2 405W B a good solar panel?
The LG NeON 2 405W B has 21% efficiency and a 25 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice.
How many LG NeON 2 405W B 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.

Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

  • 10+ years analyzing residential solar economics and payback modeling
  • Lead researcher for EnergyTools' 50-state solar cost-per-watt database
  • Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.