Efficiency leader, heavy for its output
The Tiger Neo 66HL4M-BDX series is a bifacial glass-glass photovoltaic module designed for commercial and utility-scale installations, where maximizing output from every square meter of roof or ground really matters. The use of N-type TOPCon cells in a half-cut configuration together with Super Multi Busbar technology reduces resistive losses and improves current collection, allowing the panel to maintain high efficiency even under diffuse light and elevated operating temperatures. The bifacial design enables additional energy harvest from the rear side of the module, meaningfully boosting energy yield on high-albedo surfaces such as light-colored roofing, sandy terrain, or snow-covered ground. This addresses the low performance of conventional single-sided panels in projects where every extra kilowatt-hour counts. A reinforced frame and tempered glass on both sides provide resistance to heavy snow and wind loads, while a low annual degradation rate translates into stable, predictable revenue over the entire lifetime of the installation. The panel suits PV plant investors and installers seeking low LCOE and long-term reliability, standing out from the competition through its combination of performance, durability, and mounting flexibility.
Ranking
Signals from the data
Commercial, utility-scale and shaded-installations.
Weight-limited structures.
Top 8% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 729th in the whole database.
Top 9% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 777th in the whole database.
Bottom 1% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 12,688th in the whole database.
N-type TOPCon half-cut cells with Super Multi Busbar technology deliver 23.14-24.06% efficiency, placing the series on par with BYD AURO N NLBK-39 (23.25%) and Astronergy ASTRO N5 (23.30%), with lower LID/LeTID degradation than older PERC cells.
The manufacturer guarantees a minimum of 87.4% nominal power after 30 years of operation, matching premium TOPCon segment standards and substantially exceeding the typical 25-year warranties of older PERC-generation modules.
The glass-glass module design with a photovoltaically active rear side captures additional energy from reflected light, particularly effective on high-albedo surfaces (light-colored roofs, gravel, snow), meaningfully reducing LCOE in commercial and ground-mount installations.
Tempered glass on both sides combined with a reinforced frame provides high mechanical resistance to snow and wind loads, an important factor for installations in harsher climates and a driver of predictable revenue over the full operating lifetime.
JinkoSolar appears on the BloombergNEF Tier 1 list (confirmed in Q1 and Q2 2026), easing non-recourse debt financing for PV projects and increasing institutional investor confidence relative to manufacturers outside this list.
JinkoSolar was temporarily removed from the BloombergNEF Tier 1 list in Q2 2024, with status only reinstated in subsequent quarters (reconfirmed in Q1/Q2 2026). For investors assessing long-term financing risk, this signals that manufacturer bankability is not permanently guaranteed and warrants ongoing verification with each financing tranche.
- Efficiency of 23.5% is 0.7pp above the TOPCon 600-650W median (22.8%)
- 235.1 W/m² power density - 7.4 W/m² more than TOPCon 600-650W median (227.7 W/m²), more power per roof area
- At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
- Weight of 38.8 kg is 6.0 kg above TOPCon 600-650W median (32.8 kg) - verify structural support
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
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 635 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.
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-BDX series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.