Middle of its segment, heavy for its output
The Leapton LP182*210-M-54-NB series was designed to maximize energy yield from the same surface area - thanks to N-type cells in TOPCon technology, the modules also function reliably in lower light conditions and exhibit slower degradation over time. This makes it a good choice where high predictability of energy production and a long lifespan are important - for example, in residential prosumer installations, on company roofs, and in projects focused on self-consumption.
A key advantage is the bifacial design, which allows for the utilization of reflected light from the ground - a real benefit on bright roofs, on ground with appropriate backing, or in systems where dispersed light is important. The large cell formats and refined connection architecture minimize internal losses, while the slim frame and modern design facilitate aesthetically pleasing installation. In addition, extended warranties support investment security and differentiate this series from many standard modules available on the market.
Ranking
Signals from the data
Residential and commercial.
Weight-limited structures and hot climates.
Bottom 20% of the TOPCon 500-550 W segment, against a median of 52.4.
Bottom 20% of the TOPCon 500-550 W segment, against a median of -0.290.
TOPCon cells deliver lower LID/LeTID degradation and better low-irradiance performance than older PERC cells, resulting in higher and more stable annual energy yield over the system's lifetime.
The dual-glass bifacial design (bifaciality 80±5%) enables an additional 5-25% rear-side energy gain depending on ground albedo, while also improving mechanical and weathering durability.
Series efficiency clearly outperforms Trina Solar's Vertex Backsheet module (21.2%) and is essentially on par with segment leader JA Solar JAM60S40 LR (23%), reducing the required roof/ground footprint for a given system power.
The manufacturer provides a 30-year linear power warranty alongside a standard 25-year product warranty - 5 years longer than the typical power warranty offered by competitors (e.g., Trina Solar, generally 25-30 years), lowering long-term investment risk.
Leapton is a Tier-1 bankable manufacturer headquartered in Japan and operating since 2012, which supports project bankability and insurability compared to less established brands in this segment.
The glass-glass build typical of this series results in higher module weight (roughly 27-28 kg) compared to backsheet panels such as Trina's Vertex Backsheet module - a factor to consider when designing mounting structures, especially on load-limited roofs.
- Efficiency of 22.9% matches the TOPCon 500-550W median
- At 229.3 W/m² power density, roof space requirements are typical for TOPCon 500-550W panels
- Temperature coefficient of -0.30%/°C matches the TOPCon 500-550W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- #2342 for efficiency, #6093 for temperature performance out of 14005 panels
Specifications
Datasheet charts
Measured curves published by Leapton in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 510 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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