Solid all-round for its segment
The Jinko Solar Tiger Neo 66HL4M-BDV (605-630W) series was designed for installations where achieving high yield from the same surface area and stable performance over a long lifespan are key priorities. These are dual-sided (bifacial) modules in a dual-glass construction, effectively utilizing reflected light from the ground - a real benefit on light-colored roofs, gravel, TPO/PVC membranes, or in farms with appropriate albedo.
The used N-type TOPCon cells stand out with low susceptibility to typical degradation in the initial years of operation and good performance under lower irradiance. In practice, this means more predictable results, even under Poland's weather conditions. The modules feature a positive power tolerance, facilitating precise string design without the risk of "weaker panels".
This is an excellent choice for PV farms, industrial halls, and commercial buildings, where longevity, environmental resistance, and maximizing energy output from each structural section are crucial.
Ranking
Signals from the data
Commercial, utility-scale and hot-climate.
Second-generation TOPCon (HOT 3.0) delivers a Pmax temperature coefficient of -0.29%/°C vs. ~-0.35% for conventional PERC cells, and effective power generation time approximately 11% longer than P-type modules. N-type architecture virtually eliminates LID degradation, resulting in more predictable energy yields throughout the 30-year service life.
Peak module efficiency of 23.32% matches Canadian Solar TOPBiHiKu6 Anti-Dust (23.3%) and exceeds both Leapton LP182*199-M-72-NH and AUSTA ENERGY AU-156MH (each at 22.54%) by nearly 0.8 percentage points. At identical roof or ground area, this translates to measurably higher annual energy yield without increasing module count.
The dual-glass bifacial design achieves up to 30% bifacial gain (per official JinkoSolar Tiger Neo whitepaper), effectively harvesting albedo from high-reflectivity surfaces such as TPO/PVC membranes, gravel, and snow. Double-glass construction eliminates EVA yellowing risk and significantly reduces long-term PID susceptibility vs. glass-backsheet alternatives.
JinkoSolar guarantees ≥99% rated output in year 1 and ≥87.4% after 30 years, with annual degradation of approximately 0.4%. Combined with a 12-year product warranty and 0~+3 W positive power tolerance, this series carries one of the strongest warranty packages available in the >600 Wp segment.
JinkoSolar is the only PV module manufacturer rated 100% bankable in the Bloomberg NEF PV Module Bankability Survey (2024), maintaining Tier-1 status for more than 10 consecutive years. This simplifies non-recourse project financing and reduces counterparty risk for institutional investors and project finance lenders.
The 66HL4M-BDV (605-630 W) series was discontinued in 2025 (released 2023, end_year 2025). This results in limited and declining new-module availability on the market, creates supply-chain gaps for system expansions, and may complicate long-term serviceability and like-for-like replacement of failed units.
- At 23.1% efficiency, this panel is on par with typical TOPCon 600-650W modules
- At 231.4 W/m² power density, this panel generates 3.7 W/m² more per unit area than TOPCon 600-650W median (227.7 W/m²)
- At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- In the top 11% for efficiency among all TOPCon panels
Specifications
Datasheet charts
Measured curves published by Jinko Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 625 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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About the Tiger Neo 66HL4M-BDV (605–630W) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.