--- title: "Leapton LP182*182-M-54-NB-435W 435W Solar Panel - Specs & Review | ComparePV" description: "Leapton LP182*182-M-54-NB-435W 435W solar panel. Specs: 21.77% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/leapton-lp182-182-m-54-nb-435w" updated: 2026-09-11 --- # Leapton LP182\*182-M-54-NB-435W Middle of its segment, heavy for its output 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Leapton - **Model:** LP182\*182-M-54-NB-435W - **Series:** LP182\*182-M-54-NB - **Rated power:** 435 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 435 W | 435 W | Typical | | | Module efficiency | 21.77% | 22.00% | Typical | 7,233 | | Power density | 217.7 | 220.2 | Typical | 7,066 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 25.0 kg | 22.0 kg | Weak - bottom 11% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.77% | 22.00% | Typical | 7,233 | | Power density | 217.7 | 220.2 | Typical | 7,066 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 57.5 | 51.4 | Weak - bottom 11% | 11,230 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **57.5 kg per kWp** - Bottom 11% of the TOPCon 400-450 W segment, against a median of 51.4. - **Best for:** Residential and commercial. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 435 W - **Efficiency:** 21.77 % - **Voltage at Pmax (Vmp):** 32.42 V - **Current at Pmax (Imp):** 13.42 A - **Open-circuit voltage (Voc):** 39.23 V - **Short-circuit current (Isc):** 13.89 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 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.00 m2 - **Power density:** 217.7 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:** 380 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7233 of 14005 | | Power density | 7066 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 11230 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells with MBB technology** - N-type TOPCon cells combined with a multi-busbar architecture reduce LID/LeTID degradation and improve high-temperature performance (Pmax temperature coefficient of -0.3%/°C) compared to older PERC cells, resulting in more stable energy yield over the module's lifetime. - **30-year power warranty at 87.4%** - The manufacturer guarantees 99% power output after the first year and 87.4% after 30 years, backed by a 25-year product warranty - a stronger and longer warranty package than the standard 25 years/84.8% offered by many tier-1 competitors. - **Bifacial glass-glass construction** - The dual-glass bifacial design captures light reflected from the ground, generating an additional 5-25% output compared to monofacial modules, while also improving mechanical durability and reducing PID compared to backsheet-based constructions. - **Tier-1 BNEF status and confirmed bankability** - Leapton Energy, founded in 2012 in Kobe, is listed as a Tier-1 manufacturer by BloombergNEF, which facilitates bank financing for projects and reflects financial stability and manufacturing scale. - **Top rating in the 2025 Kiwa PVEL Reliability Scorecard** - Leapton Solar was recognized as a Top Performer in the independent Kiwa PVEL 2025 PV Module Reliability Scorecard, confirming production quality beyond the manufacturer's own claims. ## Cons - **Lower efficiency than leading peers** - The series' efficiency range of 21.52-22.52% trails comparable 450 Wp modules from competitors - SunKean/Sunket SKT430~450M10-108D5 reach 23.04%, and Sunova Tangra S Pro HD reaches 22.5%. For the same roof area, this means slightly lower energy yield per m² compared to these alternatives. ## About this series The Leapton LP182\*182-M-54-NB series is designed for high productivity in real-world conditions, even when the installation doesn't have ideal exposure. The use of **N-type cells** and the **MBB (multi busbar) architecture** helps to minimize losses and stabilize performance over the long term, which will be appreciated by investors focused on predictable energy production. These are **glass-glass bifacial modules**, so they can utilize reflected light from the ground, while also being better able to withstand loads and operate in demanding environments. In practice, this means fewer problems with degradation, better resistance to PID effects, and higher output in less sunny conditions. The series is suitable for modern residential and commercial installations, especially on bright roofs, carports, and ground-mounted structures. An additional advantage is the **Full Black aesthetic** or the version with a black frame - without compromising between appearance and technology. ## Notable figures - At 21.8% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 217.7 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - At 25.0 kg, this panel is 3.0 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What warranty does the Leapton LP182\*182-M-54-NB series come with? The LP182\*182-M-54-NB series includes a 25-year product warranty covering material and manufacturing defects, plus a 30-year linear power output warranty. Leapton guarantees at least 87.4% of nominal power output after 30 years. This is one of the most comprehensive warranty packages in the industry and reflects the manufacturer's confidence in the long-term durability of N-type TOPCon technology in a dual-glass construction. ### Is the Leapton LP182\*182-M-54-NB suitable for sloped roof installations? Yes, the LP182\*182-M-54-NB series is well suited for sloped roofs. The module measures 1722 x 1134 mm and weighs approximately 24 kg, which is compatible with standard rooftop racking systems. The dual-glass construction provides superior mechanical strength — the panel withstands snow loads up to 5400 Pa and wind pressure up to 2400 Pa, making it reliable even on more exposed roof surfaces. ### What is TOPCon technology and why does the Leapton LP182\*182-M-54-NB use it? TOPCon (Tunnel Oxide Passivated Contact) is an advanced N-type cell technology that delivers higher conversion efficiency and slower long-term degradation than conventional PERC modules. In the LP182\*182-M-54-NB series, this translates to 450 W peak output in a compact footprint, strong PID resistance, and stable energy production over the module's full lifetime. For the end user, it means more kilowatt-hours generated from the same roof area over 25-30 years. ### Are the bifacial Leapton LP182\*182-M-54-NB panels worth it for ground-mounted systems or carports? Yes, ground-mounted systems and carport canopies are among the best use cases for the LP182\*182-M-54-NB series. Bifacial dual-glass modules harvest energy from both sides — reflected irradiance from the ground can boost annual yield by 5-15% depending on the albedo of the surface below. Light concrete, gravel, white roofing membrane, or snow deliver the best results. The dual-glass build also adds structural resilience for freestanding racking. ### How does the LP182\*182-M-54-NB perform in cloudy weather and winter conditions? The LP182\*182-M-54-NB is optimized for low-light performance thanks to N-type TOPCon cell technology and MBB architecture. The panel operates across a temperature range of -45°C to +85°C, eliminating any risk of frost damage. A low temperature coefficient limits power loss on hot summer days, while in winter, snow-covered ground reflecting sunlight gives the bifacial module an additional energy bonus over conventional monofacial panels. ### Is the Leapton LP182\*182-M-54-NB series available in a Full Black aesthetic version? Yes, Leapton offers the LP182\*182-M-54-NB in a Full Black variant featuring a black frame and dark busbar grid. This option suits installations where aesthetics matter — without any technical compromise. The Full Black module retains the complete specification, including 450 W peak power and bifacial dual-glass construction. It is particularly popular on dark rooftops and in premium residential or commercial projects where the visual appearance of the array is important. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/d1903516d4a68d18b64f3274c9b6f083-310a2e4d0932.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +50 W, lighter, +2.5 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +50 W, lighter, +2.5 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +50 W, cooler, +2.5 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +50 W, lighter, +2.5 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +50 W, cooler, +2.5 pp | | [Leapton LP182\*182-M-54-NH-430W](https://comparepv.com/panel/leapton-lp182-182-m-54-nh-430w) | 430 W | Lighter, -0.2 pp | | [Leapton LP182\*210-M-48-NB-440W](https://comparepv.com/panel/leapton-lp182-210-m-48-nb-440w) | 440 W | +0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +75 W, cooler, +3.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +60 W, lighter, +3.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +70 W, cooler, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +55 W, lighter, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +65 W, cooler, +2.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +65 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/leapton-lp182-182-m-54-nb-435w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.