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LG Brand review

LG400N2W-A5

400 Wp N-type Bifacial
ComparePV verdict

Middle of its segment, weak in heat

Rank 12,370 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 1%
Efficiency (%)
19.30
Weak · bottom 1%
Density (Wp/m²)
193.0
Weak · bottom 1%
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
21.7
Typical · median 22.0 kg
Warranty (yrs)
25
Weak · bottom 11%

LG NeON 2 72cell panels are an advanced solution for investors seeking maximum power from limited roof space. At the heart of this series is innovative Cello technology, which replaces traditional busbars with twelve thin wires. This solution not only enhances the module's aesthetics but, above all, drastically increases reliability and current flow efficiency, minimizing energy losses. Thanks to the use of N-type cells, these modules exhibit almost total resistance to the LID effect, which translates into significantly higher performance throughout the installation's lifecycle compared to standard p-type products. This series solves the problem of power drop at high temperatures, offering one of the best temperature coefficients on the market. It is an ideal choice for large commercial facilities and solar farms, where outstanding mechanical durability and the financial stability of the investment are key. The use of 72 cells allows for the optimization of installation and wiring costs while maintaining the highest yield parameters. They are distinguished from the competition by above-average aesthetics and rigorous quality tests, which guarantee trouble-free operation even in extreme weather conditions, ensuring full safety and peace of mind for demanding business users.

Ranking

321 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.30% 21.91% Weak · bottom 1% 12,799
Power density 193.0 218.3 Weak · bottom 1% 12,785
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,345
Weight per kWp 54.2 51.2 Typical 8,496
Performance warranty 25 yrs 30 yrs Weak · bottom 11% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 6 caution
Best for

Commercial.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the N-type 400-450 W segment, against a median of -0.290. Ranked 12,345th in the whole database.

19.30% module efficiency

Bottom 1% of the N-type 400-450 W segment, against a median of 21.91%. Ranked 12,799th in the whole database.

193.0 watts per square metre

Bottom 1% of the N-type 400-450 W segment, against a median of 218.3. Ranked 12,785th in the whole database.

What owners get
Cello technology reduces power loss

Replacing traditional 3 busbars with twelve thin wires increases current flow paths and reduces resistive losses, enabling up to 30% more energy yield versus a standard PV module of comparable power, according to the manufacturer.

N-type cells resistant to LID

N-type cell technology virtually eliminates light-induced degradation (LID), a common issue in older p-type modules, resulting in more stable energy output during the first years of operation.

Bifacial construction

The panel uses double-sided (bifacial) cells that capture additional energy from reflected light on the rear side, particularly beneficial for ground-mounted installations on bright surfaces.

25-year power warranty at top-tier level

The manufacturer guarantees at least 95.9% of rated power after 25 years — better than the standard warranties offered by many segment competitors (typically around 84-87% at 25 years), making the series financially attractive over the long term.

Tier-1 manufacturer reputation and mechanical durability

LG Electronics, a South Korean conglomerate founded in 1958, designed the NeON 2 series with rigorous quality testing and mechanical durability in mind, making it a strong choice for commercial installations and PV farms requiring reliable operation under harsh conditions.

Trade-offs
Production discontinued — limited service

LG Electronics officially closed its global solar panel business in 2022 (production at the Huntsville plant ended in Q2 2022), meaning no new units are available and replacement parts are limited in case of claims — though LG states it honors warranties, in practice this may result in pro-rated refunds rather than physical module replacement.

Lower efficiency than newer competitors

The 19.3% efficiency lags behind current models of the same 400 Wp power class — e.g., the Heliene 108HC M10 SL All Black reaches 20.5% — meaning a slightly larger module area is needed to achieve the same installed capacity.

Shorter product warranty than some newer models

The 15-year product warranty is standard for pre-2020 panel generations, while many current tier-1 manufacturers now offer 25-30 year product warranties, making this series less competitive against current market offerings.

Notes from the database
  • Module efficiency of 19.3% is 2.6pp below average for N-type 400-450W panels (median: 21.9%)
  • 193.0 W/m² power density is 25.3 W/m² below N-type 400-450W median (218.3 W/m²) - requires larger installation area
  • At -0.36%/°C, loses 0.07pp more power per degree than N-type 400-450W median (-0.29%/°C)
  • #12799 for efficiency, #12345 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.30 % Weak Segment median 21.91%
Vmpp · Impp 40.60 V · 9.86 A Operating point at max power
Voc · Isc 49.30 V · 10.47 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2024×1024×40 mm · 2.07 m² of roof
Weight 21.7 kg Typical Typical · median 22.0 kg
Cells 72 · N-type Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.260 · 0.020 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 11% · median 30 yrs
End-of-warranty output 86.0 % Equals 334 W guaranteed
Degradation 2.00 → 0.50 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.360 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
LG LG400N2W-A5 400 W 19.30% -0.360 21.7 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +3.8 pp, +5 yr warranty
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, cooler, +3.8 pp
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +3.7 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, cooler, +3.7 pp
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, cooler, +3.7 pp
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +3.7 pp
MS480NC-HJTPBFT 480 W 22.10% -0.260 23.0 kg +80 W, cooler, +2.8 pp
MS475NC-HJTPBFT 475 W 21.90% -0.260 23.0 kg +75 W, cooler, +2.6 pp
430W 430 W 21.62% -0.350 22.0 kg +30 W, +2.3 pp, +5 yr warranty
MS470NC-HJTPBFT 470 W 21.60% -0.260 23.0 kg +70 W, cooler, +2.3 pp
LR4-72HPH-465M 465 W 21.40% -0.340 24.3 kg +65 W, heavier, +2.1 pp
MS465NC-HJTPBFT 465 W 21.40% -0.260 23.0 kg +65 W, cooler, +2.1 pp

Found 1 panel of the same or similar size to this one, within ±10 mm. See them here Found 125 panels of the same or similar size to this one, within ±25 mm. See them here Found 291 panels of the same or similar size to this one, within ±50 mm. See them here Found 820 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is Cello technology in the LG NeON 2 72cell panels and what does it actually mean for an investor?
Cello technology replaces the conventional 3 busbars with 12 thin wires. Current travels a shorter path, reducing resistive losses and boosting module efficiency. The thin wires are also far more flexible than busbars, so the panel withstands mechanical stress from wind and snow loads better and is significantly more resistant to micro-cracks in the cells. For investors, this means higher energy yield and a lower risk of failures over the long operational horizon.
What warranty does the LG NeON 2 72cell series carry and how much power output remains after 25 years?
The LG NeON 2 72cell series comes with a 15-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty. LG guarantees at least 80.2% of nominal power after 25 years of operation, with an annual degradation rate of just 0.6%. This is one of the lowest degradation figures in the commercial segment and directly improves the project's LCOE over its lifetime.
Are the LG NeON 2 72cell panels bifacial and what does that mean for a utility-scale solar farm?
Yes, the LG NeON 2 72cell modules are bifacial — the rear side generates additional energy from light reflected off the ground surface. In ground-mount installations with bright or gravel-covered albedo, energy yield can be 5–15% higher compared to monofacial modules. The commercial 72-cell format also reduces the total number of modules per MW, lowering BoS costs for cabling and mounting while delivering up to 400 Wp per module.
Why are N-type cells in the LG NeON 2 72cell more resistant to long-term degradation than standard p-type cells?
The N-type cells in the LG NeON 2 72cell contain virtually no boron, making them nearly immune to LID (Light Induced Degradation). In standard p-type modules, LID causes a permanent power drop of 1–3% within the first few weeks of sun exposure. The absence of LID means the module delivers its full rated power from day one and maintains higher efficiency throughout the entire 25-year warranty period.
How do LG NeON 2 72cell panels perform on hot days when rooftop temperature exceeds 50°C?
The LG NeON 2 72cell modules feature one of the best temperature coefficients in the commercial class — approximately -0.34%/°C for Pmax. By comparison, a typical p-type panel is rated at -0.40%/°C or worse. In practice, at a cell temperature of 70°C the LG module loses around 16.6% of nominal power, while a p-type panel loses nearly 21%. This difference compounds over years and results in a measurably higher annual energy yield in warm climates.
Is the LG NeON 2 72cell series still available for purchase and should it be considered for a new installation?
The LG NeON 2 72cell series has been discontinued. LG Energy Solution shut down its solar panel division in 2022, and no new modules of this series are being manufactured. Occasional remaining stock may appear at distributors or on the secondary market, but availability is very limited. For a new commercial or utility-scale installation, we recommend evaluating equivalent N-type modules (TOPCon or HJT) from manufacturers that actively support warranty obligations.
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