--- title: "Leapton LP182*210-M-66-NB-620W 620W Solar Panel - Specs & Review | ComparePV" description: "Leapton LP182*210-M-66-NB-620W 620W solar panel. Specs: 22.95% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/leapton-lp182-210-m-66-nb-620w" updated: 2026-09-11 --- # Leapton LP182\*210-M-66-NB-620W Middle of its segment, weak in heat 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Leapton - **Model:** LP182\*210-M-66-NB-620W - **Series:** LP182\*210-M-66-NB - **Rated power:** 620 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 620 W | 620 W | Typical | | | Module efficiency | 22.95% | 22.80% | Typical | 2,268 | | Power density | 229.5 | 227.7 | Typical | 2,191 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight (kg) | 33.5 kg | 32.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.95% | 22.80% | Typical | 2,268 | | Power density | 229.5 | 227.7 | Typical | 2,191 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight per kWp | 54.0 | 53.1 | Typical | 8,248 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-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 cold-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 620 W - **Efficiency:** 22.95 % - **Voltage at Pmax (Vmp):** 41.06 V - **Current at Pmax (Imp):** 15.10 A - **Open-circuit voltage (Voc):** 49.55 V - **Short-circuit current (Isc):** 15.93 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:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.5 kg - **Area:** 2.70 m2 - **Power density:** 229.5 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:** 542 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2268 of 14005 | | Power density | 2191 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 8248 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Bifacial dual-glass construction** - Bifacial design captures reflected light from the ground surface, yielding an estimated additional 5-25% energy gain depending on albedo, per manufacturer data. A real advantage on light-colored roofs, PVC membranes, and ground-mount installations. - **N-type TOPCon cells with low degradation** - Annual power degradation of around 0.4% combined with a Pmax temperature coefficient of -0.3%/°C mean more stable performance on hot days and higher energy yield over 20-30 years compared to older PERC technology. - **Efficiency up to 23.32%, on par with segment leaders** - Peak efficiency of 23.32% matches top-tier peers such as Resun RS8H-M-BD (23.32%) and Jinko Tiger Neo 66HL4M-BDV (23.32%), and edges out Canadian Solar TOPBiHiKu6 Anti-Dust (23.3%) at the same 630 Wp max power. - **30-year power warranty and BNEF Tier-1 status** - The manufacturer guarantees a minimum of 87.4% of rated power after 30 years, and Leapton holds BNEF Tier-1 status, confirming module deployment across at least six projects backed by different non-recourse project finance banks — key for bank-financed commercial and utility-scale PV projects. - **Reinforced frame for climatic loads** - High mechanical load rating is relevant for snow and wind loads typical in Poland, reducing microcrack and failure risk during winter on large rooftop arrays. ## Cons - **No clear efficiency edge over peers** - The 23.32% max efficiency is identical to Resun RS8H-M-BD and Jinko Tiger Neo 66HL4M-BDV, so this metric isn't a real technical differentiator — it merely matches the current standard for premium TOPCon modules. - **Shorter market track record than industry giants** - Leapton has been operating since 2012, considerably less than players like Canadian Solar (since 2001) or Jinko Solar (since 2006), which — despite the same BNEF Tier-1 classification — may raise questions about manufacturing scale and long-term warranty servicing stability. ## About this series The Leapton LP182\*210-M-66-NB series is designed for installations where high energy production from a given area and stable operation in more challenging conditions are crucial. These are **dual-sided (bifacial) modules** with a dual-glass construction, allowing them to also utilize reflected light from the ground - a significant advantage, especially on bright roofs, membranes, and ground-mounted installations. The use of **N-type TOPCon cells** results in improved resistance to typical performance losses over time and more predictable performance at high temperatures. Another key feature of this series is **high mechanical durability**, which is important for snow and wind loads, a significant factor in the Polish climate. The series is also complemented by **a longer warranty package**, which supports investors seeking a safe return on their investment. The LP182\*210-M-66-NB is well-suited for PV farms, large commercial roofs, and projects where maximizing yield is important without increasing the number of modules. ## Notable figures - At 22.9% efficiency, this panel is on par with typical \*\*TOPCon 600-650W\*\* modules - At 229.5 W/m² power density, roof space requirements are typical for \*\*TOPCon 600-650W\*\* panels - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #2268 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output and efficiency of the Leapton LP182\*210-M-66-NB panels? The top variant of the Leapton LP182\*210-M-66-NB series reaches 630 Wp with a module efficiency of 23.3%. The series spans 610–630 Wp, giving system designers flexibility to match exact power requirements to available roof or ground area. This efficiency level is excellent for a 66-cell module using 182×210 mm wafers. ### What does bifacial mean for the LP182\*210-M-66-NB series, and how much extra energy can it generate? A bifacial module captures sunlight from both the front glass and the rear glass, harvesting light reflected off the surface beneath the array. Leapton specifies a bifaciality coefficient of 80±5%, translating to a real-world energy gain of 5–25% depending on ground albedo. Light-colored roofing membranes, gravel, and snow-covered ground — common in Central European installations — deliver the highest bifacial gains. ### Why are the N-type TOPCon cells in the LP182\*210-M-66-NB better than older PERC technology? N-type TOPCon cells have a lower temperature coefficient and are inherently resistant to LID and LeTID degradation that accelerates power loss in PERC modules. Leapton rates annual degradation at just 0.4%, guaranteeing at least 87.4% of nameplate power after 30 years. Typical PERC modules generally guarantee 80–83% after 25–30 years, making TOPCon the stronger long-term performer. ### Can the Leapton LP182\*210-M-66-NB panels handle heavy snow loads and strong winds common in Central Europe? Yes. The dual glass construction — two layers of 2 mm heat-strengthened glass — combined with TÜV Nord-certified mechanical load tests confirms resistance to snow loads up to 5,400 Pa and wind loads up to 2,400 Pa. These values significantly exceed the structural requirements for most Polish and Central European locations, where design snow loads rarely exceed 2,000–2,500 Pa. ### What warranty does the Leapton LP182\*210-M-66-NB series carry, and what does it cover? Leapton provides a 25-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty. After 30 years the module must retain at least 87.4% of its rated power, with annual degradation capped at 0.4%. This is one of the longest warranty packages on the market and is especially relevant for utility-scale and commercial PV projects requiring bankable long-term performance guarantees. ### Is the LP182\*210-M-66-NB series suitable for large-scale solar farms and commercial installations? Yes, the series is engineered for utility-scale and commercial projects. The 2384×1134 mm module format and up to 630 Wp per panel reduce the total module count and BoS costs per installed megawatt. Leapton holds Tier 1 status in industry bankability rankings, which simplifies project financing and satisfies insurer requirements for large-scale PV installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/4e8de29b0c5de5aa6011d09a0a3e2986-f2106b9c67bc.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.2 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +50 W, lighter, +1.9 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +50 W, lighter, +1.9 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.9 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +50 W, cooler, +1.9 pp | | [Leapton LP182\*210-M-66-NB-610W](https://comparepv.com/panel/leapton-lp182-210-m-66-nb-610w) | 610 W | -10 W, -0.4 pp | | [Leapton LP182\*210-M-66-NB-615W](https://comparepv.com/panel/leapton-lp182-210-m-66-nb-615w) | 615 W | Very close match | | [Leapton LP182\*210-M-66-NB-625W](https://comparepv.com/panel/leapton-lp182-210-m-66-nb-625w) | 625 W | Very close match | | [Leapton LP182\*210-M-66-NB-630W](https://comparepv.com/panel/leapton-lp182-210-m-66-nb-630w) | 630 W | +10 W, +0.4 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +60 W, lighter, +2.2 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +55 W, lighter, +2.1 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +80 W, cooler, +2.1 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +75 W, cooler, +1.9 pp | --- Source: https://comparepv.com/panel/leapton-lp182-210-m-66-nb-620w 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.