LONGi Solar Review (Philippines): The World's Largest Panel Maker, Now With N-Type Efficiency
Published specifications for the Hi-MO 6 and Hi-MO 7. A brand ships several series, so these figures describe this model and not every product the manufacturer sells.
- Module efficiency
- Hi-MO 6 up to 22.8% · Hi-MO 7 around 23.3%Hi-MO 7 figure is for the residential 460 W variant; its cell efficiency tops 24%.
- Cell technology
- Hi-MO 6 first-generation HPBC back contact · Hi-MO 7 N-type
- Product warranty
- 12–15 yearsVaries by line, and shorter than the performance term. Read the datasheet for your specific model.
- Performance warranty
- Hi-MO 6 25 years to ~84.8% · Hi-MO 7 30 years
- Annual degradation
- Hi-MO 7 capped at 0.40%
- Temperature coefficient
- Hi-MO 7 −0.28 %/°C
- Bifacial ratio
- Hi-MO 7 roughly 80%
Source: LONGi Hi-MO product datasheets. 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
- Hi-MO 7 pairs around 23.3% module efficiency with a 30-year power warranty and 0.40% annual degradation.
- An eight-time Kiwa PVEL Top Performer, one of only three module types to take top marks across every reliability test in 2025 — an outside check rather than manufacturer marketing.
- Hi-MO 7's −0.28 %/°C temperature coefficient holds output better in the heat a Philippine rooftop actually sees.
Where it falls short
- The product warranty runs 12–15 years against a 25 or 30-year performance term, so a mechanical failure in year 16 is not covered.
- No single clearly designated national residential distributor, unlike Jinko — verifying an installer's sourcing takes more legwork.
- Hi-MO 6 and Hi-MO 7 carry materially different efficiency and warranty terms, so "LONGi panels" at face value tells you very little.
Compare against the other 29 panels we have reviewed
How the Hi-MO 6 and Hi-MO 7 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 |
|---|---|---|---|---|
| Hi-MO 6 and Hi-MO 7 this review | — | 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 |
| 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 |
| 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 | — | — | — | — |
| LP182*182-M-72-NB (N-type TOPCon) | 565-585 W | 21.86-22.64% | — | 30 years linear |
| 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.
LONGi is the world’s largest solar module maker by shipments and Wood Mackenzie’s top-ranked manufacturer for 2026, and its Hi-MO 6 and Hi-MO 7 lines back that scale up with genuinely strong efficiency and an eight-time PVEL “Top Performer” reliability record. It’s one of the easiest Tier-1 brands to justify on paper — the harder part in the Philippines is confirming exactly who’s selling it to you.
Local availability
LONGi panels are sold in the Philippines through distributors and installers such as Solar World PH, and the Hi-MO series shows up regularly in Metro Manila, Cebu, and Davao installer catalogs. That said, LONGi doesn’t have one clearly designated national residential distributor the way Jinko does through Solar Grid Alternatives — availability here is more “ask your installer which generation they’re quoting” than a single traceable channel. Before you buy, confirm the specific Hi-MO model and generation, and ask for proof the seller sources from an authorized channel rather than gray-market import.
Efficiency and warranty
Hi-MO 6 uses first-generation HPBC (back-contact) cell technology and reaches up to about 22.8% module efficiency, with a 25-year linear power warranty guaranteeing roughly 84.8% of nameplate output at year 25. Hi-MO 7 is the newer N-type line: cell efficiency tops 24%, module efficiency reaches around 23.3% on the residential 460W variant, and it carries a longer 30-year power warranty with degradation capped at 0.4% a year. Hi-MO 7’s higher bifacial ratio (roughly 80%) and better temperature coefficient (-0.28%/°C) also mean it holds output better in the kind of heat Philippine rooftops see. Product (defects) warranty terms vary by line, running roughly 12-15 years — shorter than the 25-year performance warranty, so read the datasheet for your specific model rather than assuming one number covers everything.
LONGi backs this up independently: it won Kiwa PVEL’s “Top Performer” reliability award for the eighth time in 2025, one of only three module types to hit top marks across every reliability test that year.
Price
Panels in this class typically run roughly ₱7,000 to ₱13,000 per unit through Philippine installers, in the same neighborhood as other Tier-1 brands — LONGi doesn’t command a large premium over Jinko or Trina despite the stronger efficiency numbers on Hi-MO 7. Always ask for a current, itemized quote; these figures move with wattage, generation, and installer margin.
Where it falls short
The lack of one clear, marketed residential distributor is the main practical drawback — you’ll need to do more legwork verifying an installer’s sourcing than you would with a brand that names its Philippine partner outright. The shorter product (defects) warranty on some Hi-MO 6 variants versus the full 25-year performance warranty is also worth flagging with your installer, since a shorter defects window matters if something fails mechanically in year 10.
Who it’s best for
Buyers who want genuinely best-in-class efficiency and an independently verified reliability record, and who are willing to press their installer for the exact model, generation, and sourcing paperwork rather than taking “LONGi panels” at face value. Compare warranty terms against Jinko Solar and read our tier-1 vs tier-2 guide and warranties explained guide before signing a quote. For the full brand lineup, see our best solar panel brands guide and panel brand roundup.