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Leapton LP182*182-M-54-NH-450W
Leapton Brand review

LP182*182-M-54-NH-450W

450 Wp TOPCon
ComparePV verdict

Middle of its segment, weak in heat

Rank 6,054 of 14,005
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 9%
Efficiency (%)
22.52
Typical · median 22.52%
Density (Wp/m²)
225.2
Typical · median 225.2
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
22.0
Typical · median 24.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Leapton LP182*182-M-54-NH series is designed for installations where high energy production is a priority, while maintaining a convenient, "roof-mounted" module format. The use of N-type cells in TOPCon technology helps minimize losses over the long term, resulting in more stable performance compared to many standard solutions. In practice, this means better predictability of system operation, especially in environments where conditions are not always ideal.

These modules utilize a half-cut architecture and multi-busbar contact system (MBB), which supports efficient current flow and improved resistance to micro-cracks that can occur during installation or transport. Another advantage is good performance at higher temperatures, which is important on heated roofs during the summer months.

LP182*182-M-54-NH is a good choice for single-family homes, small businesses, and projects where high efficiency in a compact format and long-term reliability are important.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.52% 22.52% Typical 4,108
Power density 225.2 225.2 Typical 4,225
Temperature coefficient -0.300 -0.290 Weak · bottom 20% 6,093
Weight per kWp 48.9 52.2 Typical 2,563
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 2 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Hot climates.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290.

What owners get
N-type TOPCon cell technology

N-type TOPCon cells offer lower LID/LeTID degradation and a favorable Pmax temperature coefficient of -0.3%/°C, translating into more stable energy yield on heat-soaked rooftops during summer.

30-year power warranty at 87.4%

The manufacturer guarantees at least 87.4% of nominal power after 30 years, exceeding the standard 25-year/84.8% terms offered by many segment competitors.

Tier-1 BNEF status and manufacturer track record

Leapton Energy is listed as a Tier-1 BloombergNEF manufacturer (Q1 2026) and has operated since 2012 with headquarters in Japan; its 440W TOPCon modules scored as top performers in independent PVEL reliability tests, confirming series bankability.

Durable half-cut MBB construction

The half-cut architecture with multi-busbar (MBB) contacts improves resistance to microcracks, and the module withstands snow loads up to 5400 Pa and wind loads up to 2400 Pa, suiting more demanding installation conditions.

Compact format with high efficiency

Efficiency up to 22.52% within a module footprint of roughly 1722x1134 mm delivers high power output from limited roof area, important for single-family homes with constrained installation space.

Trade-offs
Efficiency below segment leaders

Peak efficiency of 22.52% trails comparable 450 Wp modules by about 0.5 pp, such as the SunKean/Sunket SKT430~450M10-108D5 (23.04%), meaning a slightly larger module footprint for the same nominal power.

Notes from the database
  • Efficiency of 22.5% matches the TOPCon 450-500W median
  • At 225.2 W/m² power density, roof space requirements are typical for TOPCon 450-500W panels
  • At -0.30%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • 22.0 kg weight - 2.0 kg lighter than TOPCon 450-500W median (24.0 kg), reducing installation effort
  • In the top 29% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.52 % Typical Segment median 22.52%
Vmpp · Impp 32.87 V · 13.69 A Operating point at max power
Voc · Isc 39.68 V · 14.15 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 22.0 kg Typical Typical · median 24.0 kg
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 20% of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 41 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 393 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Leapton in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 450 Wp appear here. The rest cover the whole series.

Current-Voltage and Power-Voltage Curves (LP182*182-M-54-NH-450W) Current-Voltage and Power-Voltage Curves (LP182*182-M-54-NH-450W) 450 W Isc, Voc and Pmax vs Temperature (LP182*182-M-54-NH-450W) Isc, Voc and Pmax vs Temperature (LP182*182-M-54-NH-450W) 450 W

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
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Leapton LP182*182-M-54-NH-450W 450 W 22.52% -0.300 22.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +45 W, cooler, +2.3 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +40 W, cooler, +2.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +2.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +2.0 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +2.0 pp
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, cooler, +2.0 pp
LP182*182-M-54-NH-430W 430 W 21.52% -0.300 22.0 kg -20 W, -1.0 pp
LP182*182-M-54-NB-435W 435 W 21.77% -0.300 25.0 kg -15 W, heavier, -0.8 pp
LP182*210-M-48-NB-440W 440 W 22.02% -0.300 25.0 kg -10 W, heavier, -0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +55 W, cooler, +2.2 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty comes with the Leapton LP182*182-M-54-NH solar panels?
The LP182*182-M-54-NH series includes a 25-year product warranty covering manufacturing defects and a 30-year linear power warranty guaranteeing at least 87.4% of rated output after 30 years. This is one of the longest power warranties on the market, reflecting the manufacturer's confidence in the long-term reliability of N-type TOPCon technology.
What is TOPCon technology and is it worth choosing Leapton LP182*182-M-54-NH over cheaper PERC panels?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that uses a thin passivation layer to reduce charge carrier recombination losses. Compared to standard PERC modules, the LP182*182-M-54-NH achieves efficiency up to ~23%, has a lower temperature coefficient, and degrades more slowly over time (reduced LID/LeTID). For a homeowner, this means higher energy yields and better output predictability over the full 30-year system lifetime.
Are the Leapton LP182*182-M-54-NH panels suitable for a typical pitched residential roof?
Yes. The LP182*182-M-54-NH modules measure approximately 1762 x 1134 x 30 mm and weigh about 22 kg, which is well within the standard range for residential rooftop installations. At 450 Wp per panel, they make efficient use of available roof area. The half-cut cell architecture improves tolerance to partial shading from chimneys or dormers, and the frame is compatible with standard aluminum rail mounting systems.
How do Leapton LP182*182-M-54-NH panels perform on hot summer days - do they lose much power at high temperatures?
The LP182*182-M-54-NH series has a temperature coefficient of approximately -0.30%/°C for Pmax, which is better than most PERC modules. On a sun-heated roof where cell temperatures reach 60-70°C, power losses remain relatively low. N-type TOPCon technology inherently handles elevated operating temperatures better than P-type cells, resulting in higher energy yield during peak summer months.
Is the Leapton LP182*182-M-54-NH a bifacial module - does it generate power from both sides?
No, the LP182*182-M-54-NH is a monofacial module - it generates power from the front side only. The bifacial variant is available under the designation LP182*182-M-54-NB. For typical rooftop installations on dark roofing tiles or membranes, a monofacial module is fully adequate, since the substrate albedo is too low for bifacial gain to be meaningful.
How many Leapton LP182*182-M-54-NH panels do I need for a 10 kWp system?
At a peak power of 450 Wp per panel, a 10 kWp system requires 23 modules (22.2 rounded up to the nearest whole number). With efficiency reaching approximately 23%, these panels occupy less roof space than older lower-density modules - a significant advantage when available roof area is limited.
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