Efficiency leader, no clear weak spot
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.
Top 15% of the TOPCon 600-650 W segment, against a median of 22.80%.
Top 16% of the TOPCon 600-650 W segment, against a median of 227.7.
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 23.3% efficiency, this panel is 0.5pp above typical TOPCon 600-650W modules (median: 22.8%)
- Power density of 233.2 W/m² packs 5.5 W/m² more into the same footprint vs TOPCon 600-650W median (227.7 W/m²)
- Temperature coefficient of -0.29%/°C matches the TOPCon 600-650W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- #1012 for efficiency, #2220 for temperature performance out of 14129 panels
Specifications
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.
Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here
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.