Leapton Solar Review (Philippines): Japan-Headquartered TOPCon via JapanSolar Philippines
Published specifications for the LP182*182-M-72-NB (N-type TOPCon). A brand ships several series, so these figures describe this model and not every product the manufacturer sells.
- Rated power
- 565-585 WDual glass, bifacial-capable, 144 half-cells of 182 by 182 mm in a 72 by 2 layout.
- Module efficiency
- 21.86-22.64%Across the power bin.
- Temperature coefficient
- -0.30%/C of PmaxPhilippine roof surfaces routinely run well above the 25C rating point, so this is the figure that decides how close to rated wattage the panel actually delivers.
- Annual degradation
- 0.4% per yearLinear to year 30, with 87.4% of power retained at year 30 per the published curve.
- Product warranty
- not publishedNot stated on the datasheet we reviewed. It is a separate clause from the 30-year power curve, so ask JapanSolar Philippines to confirm it in writing.
- Performance warranty
- 30 years linear
- Bifacial gain
- 5-25% additional outputPer Leapton datasheet, depending on mounting. The upper end assumes a reflective surface and a real air gap, not a panel flush-mounted above a dark tin roof.
- Coastal testing
- TUV Nord salt spray and ammonia corrosionStandard protocol rather than Philippines-specific, but the right thing to ask about near the water.
- Philippine channel
- JapanSolar Philippines, Inc., Makati5/F, 111 Paseo de Roxas Avenue, Legaspi Village. Also carries SMA and SOFAR inverters, publishes its own mounting documentation for Philippine typhoon loads, and hosts an eight-page Leapton warranty document dated February 2025.
Source: Leapton LP182*182-M-72-NB datasheet. Checked 2026-09-28. Manufacturers revise specifications between series without notice — confirm the figures for the exact model you are quoted before you pay.
What it does well
- A distributor that hosts a brand-specific, dated warranty document on its own infrastructure, which shows claims paperwork exists and is current rather than that someone once imported a pallet.
- Current N-type TOPCon with a -0.30%/C temperature coefficient and 0.4% annual degradation, so it holds rated output better on a hot roof than older PERC.
- An established multi-brand Makati distributor with its own typhoon-load mounting documentation, which is a stronger local signal than most brands in this category get.
Where it falls short
- The product warranty term is unconfirmed in the datasheet we reviewed, and it covers different failure modes from the 30-year power curve.
- A single distributor, real and well documented but still one channel, without the redundancy Jinko enjoys across multiple installers.
- We could not independently verify BNEF Tier 1 status or PVEL or RETC lab results for Leapton specifically, and the bifacial gain figure assumes mounting most Philippine roofs will not provide.
Compare against the other 29 panels we have reviewed
How the LP182*182-M-72-NB (N-type TOPCon) compares with the other panels we have reviewed. Listed in no particular order — this puts published figures side by side, it does not pick a winner. Scroll the table sideways to see every column.
| Model | Rated power | Module efficiency | Product warranty | Performance warranty |
|---|---|---|---|---|
| LP182*182-M-72-NB (N-type TOPCon) this review | 565-585 W | 21.86-22.64% | — | 30 years linear |
| Tiger Neo N-type (72HL4 series) | 555–575 W | — | 12–15 years | 30 years to 87.4% |
| Vertex S+ TSM-NEG9R.28 | 430–460 W | Up to 23.0% | 25 years | 30 years |
| HiKu / BiHiKu / TOPHiKu6 lineup | 560–600 W | Up to 22.6% | 12–25 years | 30 years, linear |
| Hi-MO 6 and Hi-MO 7 | — | Hi-MO 6 up to 22.8% · Hi-MO 7 around 23.3% | 12–15 years | Hi-MO 6 25 years to ~84.8% · Hi-MO 7 30 years |
| Q.TRON BLK M-G2+ | 415–440 W | Up to 22.5% | 25 years | 25 years to 90.58% |
| Neostar 2S / 2P (ABC) | 440–520 W | Up to 23.5–24.3% | 15 years | 30 years, linear |
| DeepBlue 4.0 Pro (and 3.0) | 475 W (DeepBlue 4.0 Pro) | 4.0 Pro about 22.7% · 3.0 about 19.5–21.3% | 4.0 Pro 25 years · 3.0 12 years | 4.0 Pro 30 years to ~87.4% at year 25 · 3.0 25 years |
| Maxeon 7 | — | Up to about 24% | 40 years | 40 years to over 88% |
| JW-HD108N / HD144N / JW Max | 445–715 W | — | — | — |
| 575 W bifacial N-type | 575 W | About 22% | — | — |
| Current mainstream lines | — | Roughly 20–22.5% | 15 years | 25–30 years |
| CMD-144 series and Meteor CME-132BDS | 575-595 W (CMD-144), 700-725 W (Meteor CME-132BDS) | — | 30 years | 30 years |
| Astro N series (n-type TOPCon) | — | — | — | — |
| PERC, N-type TOPCon and N-type HJT lines | 425-530 W mainstream residential TOPCon, to 660 W class bifacial | 21.8-24.5% mainstream TOPCon, up to 24.6% | 12 years | 25 years PERC, 30 years TOPCon bifacial |
| n-type TOPCon range | — | — | — | — |
| Series 6 and Series 7 (CdTe thin film) | Around 525 W (Series 7) | 18.8-19.7% | — | 30 years |
| PERC, bifacial, HJT and n-type TOPCon range | 385-730 W across the range | — | — | — |
| Heterojunction (HJT) modules | — | — | — | — |
| N-type TOPCon range | — | — | — | — |
| EverVolt (HJT), discontinued 2025 | — | Roughly 19-21% | — | — |
| PERC, bifacial, HJT and n-type TOPCon range | 400-730 W across the range | — | — | — |
| Alpha Pure-R and Alpha Pure-RX | — | Roughly 21.9-22.6% | 25 years | 25 years |
| Titan series, with a separate Hyper-ion HJT line | — | Around 21.8% mainstream, Titan topping out around 21.7% | 15 years on current lines | 30 years on current lines |
| Tangra series (n-type TOPCon) | — | — | — | — |
| Maxeon back-contact modules | — | Low-to-mid 20% range | — | — |
| SPDG585-600W-N144M10 (SPDG bifacial series) | 585-600 W in this bin | 22.64-23.22% | 15 years | 30 years linear |
| TOPCon residential range | Roughly 395 W up to large-format commercial modules | Around 22%, up to about 23.2% on higher-end SKUs | 12 years | 25 years monofacial, 30 years bifacial |
| N-type TOPCon own-brand modules | — | — | — | — |
| Monocrystalline half-cut PERC range, many bifacial | 360-700 W across residential and commercial lines | Roughly 20.5-22.5% | 10-12 years | 25 years standard, 30 years bifacial |
Dashes are figures the manufacturer does not publish, not zeros. Where two products differ on a spec, which one matters depends on your roof and your usage — a higher efficiency panel earns its premium on a small roof and rarely on a large one.
Leapton Energy Co., Ltd. is headquartered in Kobe, Japan, with manufacturing run through its subsidiary Leapton Solar (Changshu) Co., Ltd. in Jiangsu, China — the same structure a number of “Japan-branded, China-made” panel companies use. It’s a single-technology lineup as far as we could verify: N-type TOPCon.
Local availability
JapanSolar Philippines, Inc., based at 5/F, 111 Paseo de Roxas Avenue, Legaspi Village, Makati City, distributes Leapton panels. This is a real, established local distributor, not a reseller of convenience — the company also carries SMA and SOFAR inverters, publishes its own mounting system documentation for Philippine typhoon loads, and has a live “Products” page hosting an eight-page Leapton warranty document dated February 2025. A distributor hosting a brand-specific, dated warranty PDF on its own infrastructure is a stronger signal than a name appearing in a “where we sell” list — it means claims paperwork exists and is current, not just that someone once imported a pallet.
That still leaves the standard caveat for a single-distributor brand: ask JapanSolar Philippines directly how a warranty claim is actually processed — whether it’s handled locally or routed back to Leapton in Japan or China — and get that process in writing before you commit to a 25- to 30-year product.
Cell technology and specs
Leapton’s LP182*182-M-72-NB datasheet (565-585W, N-type TOPCon, dual glass, bifacial-capable) gives:
- Module efficiency: 21.86% up to 22.64% across the power bin
- Temperature coefficient of Pmax: -0.30%/°C
- Annual degradation: 0.4% per year, linear to year 30 (87.4% power retained at year 30 per the published curve)
- Cell: N-type, 182×182mm half-cells, 144 total (72×2)
The product warranty term specifically (materials and workmanship, as distinct from the power-output warranty) wasn’t stated on the datasheet we reviewed — ask JapanSolar Philippines to confirm it in writing, since it’s a separate clause from the 30-year linear power curve above. Solar panel warranties explained covers why that distinction matters.
TOPCon’s improved temperature coefficient over older P-type PERC technology is directly relevant to Philippine installs: roof surfaces here routinely run well above the 25°C standard-test-condition benchmark, so the panel that loses less output per degree of heat delivers closer to its rated wattage in practice, not just on the spec sheet. Solar performance in extreme heat and mono PERC vs TOPCon cover the mechanism. N-type vs p-type explains the cell chemistry behind the improvement.
Bifacial gain, realistically
The LP182*182-M-72-NB is bifacial-capable, rated for an additional 5-25% output depending on mounting conditions per Leapton’s own datasheet. That upper end assumes a reflective surface and real air gap behind the panel — elevated racking over white gravel or a light-colored surface, not a panel flush-mounted a few centimeters above a dark tin roof, which is the typical Philippine residential setup. Monocrystalline vs polycrystalline vs bifacial covers what actually delivers the bifacial bonus and what doesn’t.
Coastal and humidity considerations
Leapton’s marketing material cites TÜV Nord salt-spray and ammonia-corrosion testing on its module range — the standard test protocol for coastal durability, not a Philippines-specific claim, but the right thing to ask about if you’re installing near the water. Salt air accelerates corrosion at the frame and junction box faster than it degrades the cells themselves, so frame and connector quality matter as much as the datasheet’s electrical numbers for a coastal Philippine install. Solar panels in coastal salt air covers what to verify beyond the spec sheet.
What it costs
No published Philippine per-watt pricing found for Leapton specifically. Installed solar systems here broadly run ₱45,000-75,000 per kW — see the price list. Compare any Leapton quote on peso per watt against a mainstream Tier-1 TOPCon alternative before deciding the Japan branding is worth a premium, if one is being charged.
Where it falls short
- Single distributor — real and well-documented, but still one channel, not the redundancy a brand like Jinko enjoys across multiple installers.
- Product warranty term unconfirmed in the datasheet we reviewed — get it in writing.
- We could not independently verify BNEF Tier 1 status or third-party lab results (PVEL, RETC) for Leapton specifically.
Who it’s best for
Buyers who want current N-type TOPCon sourced through a distributor with a real Makati office, a multi-brand track record, and dated documentation on file — a meaningfully better channel signal than most brands in this category get. Confirm the product warranty term and claims process with JapanSolar Philippines before signing. Compare against the rest of the field in the best solar panel brand roundup.