Choosing between LONGi Hi-MO 7 and Jinko Tiger Neo is one of the most common procurement questions Econo Solar receives from large-scale buyers. Both are 660 W n-type TOPCon bifacial panels from the world's two dominant PV manufacturers. This article puts the specifications, real-world performance factors, and practical decision criteria side by side so procurement teams and EPCs can make a confident, data-backed choice.
Why These Two Panels Lead the Market
Both LONGi Hi-MO 7 and Jinko Tiger Neo represent the current peak of mass-produced n-type TOPCon technology, and their position at the top of procurement shortlists is not accidental. LONGi Solar has held world records for cell efficiency for years running, driving its Hi-MO product line to the forefront of module engineering. The company's Hi-MO 7 series applies those cell advances to a commercially scaled 72-cell format, yielding a 660 W module with 22.8% efficiency and an ultra-low temperature coefficient.
Jinko Solar, by contrast, is the world's largest solar panel manufacturer by shipment volume — a position it has held consistently since 2022. That scale brings supply chain depth, global warehousing, and certified compliance across virtually every grid market. The Tiger Neo JKM660N-72HL4-V is Jinko's answer to high-power bifacial demand, matching LONGi on rated wattage and edging fractionally ahead on module efficiency at 22.86%.
Choosing between them matters significantly for large procurement decisions. At 10 MW scale, a 2.6 kg per-panel weight difference becomes nearly 40 tonnes of additional roof or racking load. A 0.1-point efficiency gap over 30 years of degradation becomes measurable yield. Getting this decision right at the procurement stage avoids costly re-specification downstream.
Technical Specifications Head-to-Head
The table below compares the flagship 660 W variants of each product line under standard test conditions (STC: 1000 W/m², 25°C, AM 1.5).
| Specification | LONGi Hi-MO 7 (LR5-72HTH-660M) | Jinko Tiger Neo (JKM660N-72HL4-V) |
|---|---|---|
| Rated Power (STC) | 660 W | 660 W |
| Module Efficiency | 22.8% | 22.86% |
| Open-Circuit Voltage (Voc) | 53.0 V | 53.22 V |
| Short-Circuit Current (Isc) | 15.71 A | 15.69 A |
| Temperature Coefficient (Pmax) | -0.29%/°C | -0.29%/°C |
| Dimensions | 2278 × 1134 × 35 mm | 2278 × 1134 × 30 mm |
| Weight | 34.9 kg | 32.3 kg |
| Frame | Silver anodised aluminium | Silver anodised aluminium |
| Front Glass | 3.2 mm tempered, AR-coated | 3.2 mm tempered, AR-coated |
| Product Warranty | 12 years | 12 years |
| Linear Power Warranty | 30 years (≥89.6% at Yr 30) | 30 years (≥89.5% at Yr 30) |
Efficiency and Real-World Yield
Module efficiency at STC is nearly identical — the 0.06 percentage point gap between 22.8% and 22.86% is within the tolerance band of most module flash testers and will not produce a measurable yield difference at the system level. Real-world annual energy generation diverges more meaningfully based on other factors.
Bifaciality factor for both modules falls in the 75–80% range. In practice this means ground-mounted arrays with high-albedo surfaces — white gravel (~35%), light concrete (~25%), or snow-covered ground (~80% in winter) — will see both panels deliver additional rear-side energy in the 5–15% range above their rated front-side output. Neither brand significantly outperforms the other on bifacial factor at current production specifications.
Degradation rate is warranted at ≤0.4% per year from year 2 for both models. First-year degradation (LID — light-induced degradation) is where n-type TOPCon provides its clearest advantage over p-type PERC: TOPCon cells are inherently low-LID because they do not rely on boron-oxygen pairs that activate under illumination. Both the Hi-MO 7 and Tiger Neo benefit from this structural advantage, retaining more of their rated output in the first 1,000 hours of operation than equivalent PERC modules.
The temperature coefficient of -0.29%/°C is identical across both panels and meaningfully better than the -0.35%/°C typical of p-type PERC. On a 45°C module operating temperature — common in Middle Eastern and Southeast Asian deployments — this translates to roughly 1% higher relative output compared to PERC, a permanent yield advantage that compounds over the 30-year project life.
Durability and Mechanical Ratings
Both panels carry the full suite of internationally recognised certifications: IEC 61215 (design qualification), IEC 61730 (safety qualification), MCS (for UK grid connection), and TÜV accreditation. These certifications confirm that independent laboratories have type-tested the modules — not merely accepted the manufacturer's self-reported datasheet values.
Static load ratings are identical: 5400 Pa front / 2400 Pa rear for both panels, satisfying the requirements of most commercial and utility mounting systems under standard snow and wind load calculations. Hail resistance is tested to IEC 61215 standard: 25 mm diameter hailstones at 23 m/s impact velocity.
The most notable mechanical difference is weight. The Jinko Tiger Neo is 2.6 kg lighter at 32.3 kg versus the LONGi Hi-MO 7 at 34.9 kg, despite identical footprint dimensions. This is achievable because Jinko uses a 30 mm frame depth compared to LONGi's 35 mm. For rooftop or high-load-constrained racking structures — particularly flat-roof ballasted systems where dead load is a critical design parameter — this weight difference is a genuine engineering advantage and can directly affect the number of panels installable per structural zone.
Bifacial Gain and Albedo Considerations
Both panels use glass-film bifacial construction, meaning the rear surface is covered with a transparent backsheet or dual-glass configuration that allows rear-side light capture. On ground-mounted utility arrays with tracker systems, bifacial gain is a primary yield optimisation lever that can add 5–15% to annual energy output depending on ground cover.
Albedo values by surface type: grass and soil ~20%, light gravel ~30%, white crushed stone ~35%, light concrete ~30%, and fresh snow ~80%. Designers should model rear-side irradiance using site-specific albedo data and a validated bifacial model (PVsyst's BiHiking model or SAM's bifacial module option) rather than applying a fixed bifacial gain assumption. Neither LONGi Hi-MO 7 nor Jinko Tiger Neo holds a meaningfully different bifacial factor at this product generation — both sit in the 75–80% bifaciality range, so bifacial yield modelling will produce nearly identical results for the two panels on the same site.
Tracker system compatibility: both panels fall within the standard dimension range for horizontal single-axis tracker (HSAT) systems from major tracker suppliers including Sungrow's own tracker products. Confirm row-to-row pitch and wind deflector requirements with the specific tracker supplier at detailed design stage.
Which Panel Should You Choose?
At the specification level, the LONGi Hi-MO 7 LR5-72HTH-660M and Jinko Tiger Neo JKM660N-72HL4-V are effectively a tie. Neither panel holds a decisive advantage in efficiency, degradation, temperature coefficient, or warranty terms. The practical decision comes down to four factors.
Project delivery timeline. Econo Solar stocks both panels and can advise on current availability from our bonded warehouse. For projects with tight commissioning dates, availability from stock takes priority over marginal specification differences.
Structural loading. If your structural engineer has flagged roof dead load as a constraint, the Jinko Tiger Neo's 2.6 kg weight advantage per panel is a meaningful engineering differentiator. At scale, this can eliminate the need for structural reinforcement in borderline cases.
Local certification and grid requirements. Both panels are certified for AU, EU, and US markets. Verify that the specific model code on your purchase order matches the certified model on the test certificate — Econo Solar provides current certificate numbers with every quotation.
Price at time of order. FOB pricing for both panels fluctuates with polysilicon spot prices and demand cycles. Econo Solar provides datasheet packages and FOB pricing for both within 24 hours of an RFQ. At equivalent price points, either panel is a sound procurement decision for utility or commercial scale projects.