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Leapton LP210*210-M-66-NB-705W
Leapton Brand review

LP210*210-M-66-NB-705W

705 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, needs the roof space

Rank 170 of 14,005
Compare panels Datasheet PDF
Power (Wp)
705
Weak · bottom 22%
Efficiency (%)
22.70
Weak · bottom 23%
Density (Wp/m²)
227.0
Weak · bottom 21%
Temp (%/°C)
-0.300
Weak · bottom 22%
Weight (kg)
37.5
Typical · median 38.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Leapton LP210*210-M-66-NB series is designed to maximize energy production from every square meter, even under less-than-ideal conditions. The use of N-type cells in combination with MBB technology helps to minimize losses and stabilize module performance, resulting in more predictable annual energy production. A key advantage of this series is the glass-to-glass bifacial design, which allows for the utilization of reflected light from the ground - particularly beneficial on bright roofs, membranes, gravel, or in ground-mounted installations.

In practice, this solves a common problem for investors: how to increase energy production without expanding the mounting area. These modules are also designed for high mechanical durability and PID protection, which is important in PV farms, carports, and large industrial rooftops, where durability and lower risk of performance degradation are crucial. Compared to many competing single-sided panels, the LP210*210-M-66-NB offers a real advantage where light can be utilized from "both sides".

Ranking

420 panels in the segment TOPCon 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.70% 23.00% Weak · bottom 23% 3,307
Power density 227.0 230.2 Weak · bottom 21% 3,361
Temperature coefficient -0.300 -0.290 Weak · bottom 22% 6,093
Weight per kWp 53.2 52.9 Typical 7,016
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 · 5 caution
Best for

Commercial and utility-scale.

Not ideal for

Roofs where every square metre has to count, hot climates and tight roof space.

Watch-outs
227.0 watts per square metre

Bottom 21% of the TOPCon 700-750 W segment, against a median of 230.2.

-0.300 %/°C temperature coefficient

Bottom 22% of the TOPCon 700-750 W segment, against a median of -0.290.

22.70% module efficiency

Bottom 23% of the TOPCon 700-750 W segment, against a median of 23.00%.

What owners get
N-type TOPCon cells with MBB technology

N-type TOPCon cells combined with multi-busbar (MBB) technology reduce resistive losses and improve low-light performance, resulting in more stable annual energy yield compared to older PERC modules.

Bifacial glass-glass construction

Bifacial glass-glass modules with 210x210 mm cells deliver an additional 5-25% energy output from rear-side irradiance capture, which is particularly cost-effective on light-colored roofs, membranes, gravel surfaces, or ground-mount installations - without expanding the mounting footprint.

30-year power warranty with 87.4% retention

The manufacturer guarantees 87.4% of rated power retention after 30 years, backed by a 25-year product warranty - a premium standard among leading tier-1 manufacturers that surpasses the typical 25-year power warranties offered by many competitors.

High mechanical resilience and PID protection

Modules passed TUV Nord testing for wind loads up to 2400 Pa and snow loads up to 5400 Pa, with built-in PID protection minimizing performance degradation risk - important for utility-scale farms, carports, and large industrial rooftops.

Tier-1 BNEF status and PVEL 2025 Top Performer

Leapton Energy maintains Tier-1 status per BloombergNEF (confirmed as recently as Q3 2024) and was recognized as a Top Performer in the Kiwa PVEL PV Module Reliability Scorecard 2025, confirming the series' bankability and credibility with project financiers.

Trade-offs
No efficiency edge over peer products

Maximum power of 720 Wp and 23.18% efficiency are effectively identical to comparable peer series - DMEGC DMxxxG12T-B66HSW, GCL-NH12/66GDF, and Hanersun Hitouch 6N (all 720 Wp, 23.2%). The series does not stand out on power specs and merely matches the segment's N-type TOPCon standard.

Higher module weight

The dual-glass construction, measuring 2384x1303x33 mm, weighs approximately 37.5 kg - typical for bifacial glass-glass modules, but resulting in higher structural mounting requirements and transport/installation costs compared to lighter monofacial backsheet modules.

Notes from the database
  • Efficiency of 22.7% matches the TOPCon 700-750W median
  • 226.9 W/m² power density is 3.2 W/m² below TOPCon 700-750W median (230.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.30%/°C matches the TOPCon 700-750W median
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • In the top 24% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 705 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.70 % Weak Segment median 23.00%
Vmpp · Impp 40.40 V · 17.45 A Operating point at max power
Voc · Isc 48.40 V · 18.52 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×33 mm · 3.11 m² of roof
Weight 37.5 kg Typical Typical · median 38.0 kg
Cells 132 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 22% 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

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
-
With bifacial gain
-

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
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Leapton LP210*210-M-66-NB-705W 705 W 22.70% -0.300 37.5 kg You are here
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +2.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +2.3 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, lighter, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Cooler, lighter, +2.2 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +2.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +2.1 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg Cooler, lighter, +2.1 pp
LP210*210-M-66-NB-690W 690 W 22.21% -0.300 37.5 kg -15 W, -0.5 pp
LP210*210-M-66-NH-695W 695 W 22.37% -0.300 34.0 kg -10 W, lighter, -0.3 pp
LP210*210-M-66-NH-700W 700 W 22.53% -0.300 34.0 kg Lighter
LP210*210-M-66-NH-710W 710 W 22.86% -0.300 34.0 kg Lighter
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +100 W, cooler, +2.4 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +95 W, cooler, +2.2 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +90 W, cooler, +2.1 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +85 W, cooler, +1.9 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +55 W, cooler, +1.8 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Leapton LP210*210-M-66-NB series come with?
The LP210*210-M-66-NB series includes a 25-year product warranty and a 30-year linear power warranty. Degradation is capped at 0.4% per year, guaranteeing at least 87.4% of nominal power after 30 years. This is among the longest power warranties on the market and provides strong investment protection for utility-scale PV farms and large commercial rooftop systems where revenue predictability over decades matters.
When does it make sense to choose the bifacial LP210*210-M-66-NB over a standard monofacial module?
The dual-glass bifacial design delivers real gains wherever the rear side of the module can capture reflected light — white TPO or PVC membranes, gravel, concrete, and snow-covered ground are ideal surfaces. Under those conditions, the LP210*210-M-66-NB generates 5–25% more energy than a comparable monofacial module. On dark-colored roofs with low albedo the rear-side gain is negligible, so evaluating ground reflectance before selecting this module is recommended.
What is TOPCon technology and how does it compare to PERC cells in older panels?
TOPCon (Tunnel Oxide Passivated Contact) is an N-Type cell technology that uses a thin tunnel oxide layer to significantly reduce charge-carrier recombination. The result is module efficiency up to 23.18% and a low Pmax temperature coefficient of -0.3%/°C. That means the LP210*210-M-66-NB loses less power on hot days than conventional PERC modules, which translates to a few percentage points of additional annual energy yield in temperate climates.
Are the LP210*210-M-66-NB modules suitable for ground-mount farms and carports?
Yes. The dual-glass construction and TÜV Nord-certified mechanical loads — wind 2400 Pa and snow 5400 Pa — make this series well-suited for ground-mount utility farms and carport structures. Built-in PID resistance limits efficiency degradation in the long string configurations typical of such projects. At 2384×1303 mm and up to 720 Wp per module, the series also reduces overall BoS cost per kilowatt of installed capacity.
How many cells does the Leapton LP210*210-M-66-NB have, and what is its peak efficiency?
The module uses 132 half-cut N-Type TOPCon cells in the 210×210 mm format. Efficiency ranges from 22.21% to 23.18% depending on the power bin (690–720 W). The top-bin 720 Wp variant achieves 23.18% efficiency, making this one of the highest-efficiency bifacial N-Type modules available from a Tier 1 manufacturer — ideal for maximizing output on constrained roof or ground space.
Is the Leapton LP210*210-M-66-NB series still available for purchase?
Yes, the LP210*210-M-66-NB series is currently in active production and commercially available. Leapton Solar is a Tier 1 bankable manufacturer headquartered in Japan, ensuring supply continuity and warranty support. Before ordering, it is worth confirming with your distributor which specific power bin (690–720 Wp) is in stock, as availability of individual bins may vary by warehouse and region.
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