--- title: "Leapton LP182*182-M-54-NH-450W 450W Solar Panel - Specs & Review | ComparePV" description: "Leapton LP182*182-M-54-NH-450W 450W solar panel. Specs: 22.52% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/leapton-lp182-182-m-54-nh-450w" updated: 2026-09-11 --- # Leapton LP182\*182-M-54-NH-450W Middle of its segment, weak in heat 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Leapton - **Model:** LP182\*182-M-54-NH-450W - **Series:** LP182\*182-M-54-NH - **Rated power:** 450 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 465 W | Weak - bottom 9% | | | 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 (kg) | 22.0 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | 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 | ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 22.52 % - **Voltage at Pmax (Vmp):** 32.87 V - **Current at Pmax (Imp):** 13.69 A - **Open-circuit voltage (Voc):** 39.68 V - **Short-circuit current (Isc):** 14.15 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 41 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 22.0 kg - **Area:** 2.00 m2 - **Power density:** 225.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4108 of 14005 | | Power density | 4225 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 2563 of 14005 | | Warranty | 21 of 14005 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - 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 ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/348b202f8a85e14ec037014a5ffdc32b-d82ae73d2116.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, cooler, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +2.0 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +2.0 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +2.0 pp | | [Leapton LP182\*182-M-54-NH-430W](https://comparepv.com/panel/leapton-lp182-182-m-54-nh-430w) | 430 W | -20 W, -1.0 pp | | [Leapton LP182\*182-M-54-NB-435W](https://comparepv.com/panel/leapton-lp182-182-m-54-nb-435w) | 435 W | -15 W, heavier, -0.8 pp | | [Leapton LP182\*210-M-48-NB-440W](https://comparepv.com/panel/leapton-lp182-210-m-48-nb-440w) | 440 W | -10 W, heavier, -0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/leapton-lp182-182-m-54-nh-450w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.