--- title: "Leapton LP182*182-M-78-NH-615W 615W Solar Panel - Specs & Review | ComparePV" description: "Leapton LP182*182-M-78-NH-615W 615W solar panel. Specs: 22.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/leapton-lp182-182-m-78-nh-615w" updated: 2026-09-11 --- # Leapton LP182\*182-M-78-NH-615W Light for its output, needs the roof space 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Leapton - **Model:** LP182\*182-M-78-NH-615W - **Series:** LP182\*182-M-78-NH - **Rated power:** 615 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 615 W | 620 W | Typical | | | Module efficiency | 22.00% | 22.80% | Weak - bottom 7% | 6,517 | | Power density | 220.0 | 227.7 | Weak - bottom 6% | 6,655 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight (kg) | 29.0 kg | 32.7 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.00% | 22.80% | Weak - bottom 7% | 6,517 | | Power density | 220.0 | 227.7 | Weak - bottom 6% | 6,655 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight per kWp | 47.2 | 53.1 | Strong - top 12% | 1,520 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **47.2 kg per kWp** - Top 12% of the TOPCon 600-650 W segment, against a median of 53.1. ### Watch out for - **220.0 watts per square metre** - Bottom 6% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 6,655th in the whole database. - **22.00% module efficiency** - Bottom 7% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 6,517th in the whole database. - **-0.300 %/°C temperature coefficient** - Bottom 19% of the TOPCon 600-650 W segment, against a median of -0.290. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 615 W - **Efficiency:** 22.00 % - **Voltage at Pmax (Vmp):** 45.63 V - **Current at Pmax (Imp):** 13.48 A - **Open-circuit voltage (Voc):** 55.46 V - **Short-circuit current (Isc):** 14.04 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:** 156 ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 29.0 kg - **Area:** 2.80 m2 - **Power density:** 220.0 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:** 538 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6517 of 14005 | | Power density | 6655 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 1520 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cell technology** - TOPCon cells deliver lower LID/LeTID degradation and better high-temperature performance than legacy PERC cells, translating into higher and more predictable annual energy yield, especially under diffuse light in fall/winter conditions. - **Tier-1 rated manufacturer per BNEF** - Leapton holds Tier-1 status from BloombergNEF, confirming module supply to at least six projects above 10 MW financed by independent commercial banks - important for bankability and project financing of PV installations. - **Rare Japan-based Tier-1 manufacturer** - Founded in 2012 and headquartered in Japan, Leapton is one of the few Japanese manufacturers with Tier-1 status, easing access to bank financing both locally and in export markets. - **Half-cut layout and IP68 junction box** - The 78 half-cut cell layout reduces losses under partial shading (chimneys, dormers, HVAC units), while the IP68-rated junction box improves resistance to moisture and harsh weather conditions. - **High unit power up to 625 Wp** - Module power in the 610-625 Wp range reduces the number of modules, cabling, and mounting structure needed on large commercial roofs and PV farms, lowering BoS cost per Wp. ## Cons - **Efficiency below segment leaders** - Module efficiency of 21.82-22.36% is noticeably lower than direct competitors at the same 625 Wp peak power - Longi Hi-MO 7 (23.1%) and DAH Solar DHN-66Z16/DG and DHN-72R20/DG (23.14%) - meaning less power from the same roof area at a comparable module footprint. - **No bifacial option in this series** - The LP182\*182-M-78-NH series is monofacial, while some comparable designs from competitors (e.g., DAH Solar's DG variants) offer dual-glass/bifacial modules that add rear-side yield on reflective mounting surfaces - Leapton does not offer this option within this series. ## About this series The Leapton LP182\*182-M-78-NH series was designed to maximize energy yield from the same installation area - particularly in situations where every square meter of the structure is valuable. These are **monofacial** modules based on **N-type TOPCon technology** cells, which perform more stably over time and better handle less ideal conditions, such as morning and afternoon shading or diffuse light during the autumn and winter seasons. The use of a **half-cut** design helps to minimize losses and improves the module's performance when partially shaded, which is important on roofs with obstructions (chimneys, skylights, HVAC systems). In practice, this series solves a common problem for investors - how to increase production without expanding the installation area. Furthermore, the robust construction with an **IP68 enclosure** ensures reliability in harsh weather conditions. The LP182\*182-M-78-NH will be a good choice for large commercial roofs, PV farms, and projects where high efficiency and predictable performance over many years are crucial. ## Notable figures - At 22.0% efficiency, this panel is 0.8pp below the \*\*TOPCon 600-650W\*\* median of 22.8% - 220.0 W/m² power density is 7.7 W/m² below \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - requires larger installation area - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 600-650W\*\* median - 29.0 kg weight - 3.7 kg lighter than \*\*TOPCon 600-650W\*\* median (32.7 kg), reducing installation effort - Ranked #6517 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the Leapton LP182\*182-M-78-NH series come with? The LP182\*182-M-78-NH series carries a 25-year product warranty and a 30-year linear power warranty. After 30 years, the manufacturer guarantees at least 87.4% of nominal power output. This is among the longest power warranties currently available on the market, significantly reducing investment risk for projects with long payback horizons. ### How does the TOPCon technology in the LP182\*182-M-78-NH series compare to standard PERC panels? N-type TOPCon cells feature a lower temperature coefficient (around -0.30%/°C vs. -0.35% to -0.38%/°C for PERC), meaning less power loss on hot days. Annual degradation rates are also lower, and N-type cells are inherently immune to LID (Light Induced Degradation), which typically reduces output in the first months of operation for older PERC modules. ### What is the peak power output and efficiency of the LP182\*182-M-78-NH panels? The top variant of the series delivers 625 Wp with a module efficiency of up to 22.36%. Dimensions are 2465 x 1134 x 30 mm with a weight of approximately 29 kg. This high power density means fewer modules are needed to achieve the same energy output compared to older PERC technology, which is especially relevant when roof space or ground area is limited. ### How does the LP182\*182-M-78-NH series perform under partial shading from a chimney or dormer? The half-cut cell layout splits each cell in two, reducing the impact of shade on overall module output. Shading one section does not suppress the full panel as severely as with conventional full-cell designs. For rooftops with chimneys, dormers, or HVAC units, it is still advisable to consider power optimizers or microinverters as an additional safeguard for energy yield. ### Is Leapton a reliable manufacturer and are the LP182\*182-M-78-NH panels certified? Leapton Energy is a Japanese company classified as Tier 1 by Bloomberg NEF, confirming financial and manufacturing stability. The LP182\*182-M-78-NH modules carry TUV, IEC 61215, and IEC 61730 certifications, with testing covering salt mist, ammonia, sand abrasion, and hail resistance. The IP68-rated junction box ensures weatherproof performance in harsh outdoor conditions. ### What types of installations is the Leapton LP182\*182-M-78-NH series best suited for? This series is best suited for large commercial rooftop installations, utility-scale PV farms, and industrial projects where maximizing power density per square meter is critical. The 625 Wp peak power and efficiency exceeding 22% reduce installation time and lower Balance of System (BoS) costs by minimizing the number of modules, cables, and mounting components required. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/facd251c13a871e5d83517e0e5922263-7fe3e26ed394.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +35 W, cooler, +3.2 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +30 W, cooler, +3.0 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +25 W, cooler, +2.8 pp | | [Longi Solar LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 W | +50 W, heavier, +2.6 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (665W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-665w-class) | 665 W | +50 W, cooler, +2.6 pp | | [Huayao HY665-B144DSS](https://comparepv.com/panel/huayao-hy665-b144dss) | 665 W | +50 W, cooler, +2.6 pp | | [Sunpro Power SPDG665-BC132R12](https://comparepv.com/panel/sunpro-spdg665-bc132r12) | 665 W | +50 W, heavier, +2.6 pp | | [Leapton LP182\*182-M-78-NH-610W](https://comparepv.com/panel/leapton-lp182-182-m-78-nh-610w) | 610 W | Very close match | | [Leapton LP182\*199-M-72-NH-620W](https://comparepv.com/panel/leapton-lp182-199-m-72-nh-620w) | 620 W | Very close match | | [Leapton LP182\*199-M-72-NB-625W](https://comparepv.com/panel/leapton-lp182-199-m-72-nb-625w) | 625 W | +10 W, heavier, +0.4 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +65 W, cooler, +3.2 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +60 W, cooler, +3.0 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +85 W, heavier, +3.0 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +80 W, heavier, +2.9 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +55 W, cooler, +2.8 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +55 W, cooler, +2.8 pp | --- Source: https://comparepv.com/panel/leapton-lp182-182-m-78-nh-615w 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.