LG — South Korea

NeON H 420W B All-Black

The LG NeON H 420W B All-Black is a 420W N-Type solar panel with 21.6% efficiency. Backed by a 30-year warranty.

Premium TierBifacial

420W

Wattage

21.6%

Efficiency

N-Type

Cell Type

30 years

Warranty

Full Specifications

Brand
LG
Model
NeON H 420W B All-Black
Series
NeON H
Wattage
420W
Module Efficiency
21.6%
Cell Type
N-Type
Dimensions
66-80" x 39-41"
Weight
48 lbs
Warranty
30 years
Est. Price Per Watt
$3.80
Est. 7kW System Cost
$26,600
Est. 10kW System Cost
$38,000
Temperature Coefficient
-0.25%/°C
Bifacial
Yes
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
Maxeon Maxeon 3 450W D Plus450W23.3%$4.61
Maxeon Maxeon 6 450W D Plus450W23.3%$4.61
Maxeon Maxeon 7 450W D Plus450W23.3%$4.61
Maxeon Maxeon Air 450W D Plus450W23.3%$4.61

Frequently Asked Questions

How much does a 420W LG NeON H 420W B All-Black cost?
The LG NeON H 420W B All-Black costs approximately $1596 per panel ($$3.80/W). A typical 7kW system using this panel would cost around $26,600 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 H 420W B All-Black a good solar panel?
The LG NeON H 420W B All-Black has 21.6% efficiency and a 30 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice.
How many LG NeON H 420W B All-Black panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 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.