--- title: "Jinko Solar JKM625-650N-66HL4M-BDX-Z1-EU Solar Panel: Specs & Datasheet | ComparePV" description: "Jinko Solar JKM625-650N-66HL4M-BDX-Z1-EU solar panel. Specs: 24.06% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jinko-solar-jkm625-650n-66hl4m-bdx-z1-eu" image: "https://comparepv.com/og/panel/jinko-solar-jkm625-650n-66hl4m-bdx-z1-eu.png" updated: 2026-09-11 --- # Jinko Solar JKM625-650N-66HL4M-BDX-Z1-EU Space saver, heavy for its output 254 panels in the segment TOPCon 650-700 W ## Identity - **Manufacturer:** Jinko Solar - **Model:** JKM625-650N-66HL4M-BDX-Z1-EU - **Series:** Tiger Neo 66HL4M-BDX (Bifacial dual-glass, 625–650W) - **Rated power:** 650 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 650-700 W (254 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 650 W | 665 W | Weak - bottom 13% | | | Module efficiency | 24.06% | 22.40% | Strong - top 23% | 290 | | Power density | 240.6 | 223.7 | Strong - top 20% | 255 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 38.8 kg | 34.6 kg | Weak - bottom 1% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 24.06% | 22.40% | Strong - top 23% | 290 | | Power density | 240.6 | 223.7 | Strong - top 20% | 255 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 59.7 | 53.1 | Weak - bottom 1% | 12,337 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **240.6 watts per square metre** - Top 20% of the TOPCon 650-700 W segment, against a median of 223.7. - **24.06% module efficiency** - Top 23% of the TOPCon 650-700 W segment, against a median of 22.40%. ### Watch out for - **59.7 kg per kWp** - Bottom 1% of the TOPCon 650-700 W segment, against a median of 53.1. Ranked 12,337th in the whole database. - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 650 W - **Efficiency:** 24.06 % - **Voltage at Pmax (Vmp):** 41.58 V - **Current at Pmax (Imp):** 15.64 A - **Open-circuit voltage (Voc):** 50.28 V - **Short-circuit current (Isc):** 16.44 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 38.8 kg - **Area:** 2.70 m2 - **Power density:** 240.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 568 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 290 of 14129 | | Power density | 255 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 12337 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Leading efficiency in peer segment** - The module delivers 24.06% efficiency - a 0.76-0.81 percentage-point advantage over comparable bifacial TOPCon modules at the same power class: Astronergy ASTRO N5 (23.3%), BYD AURO N (23.25%), and Einnova TOPCon 650W (23.25%). On a 1 MWp installation this translates to measurably higher energy output without adding panels or racking. - **30-year linear power warranty - >87.4% Pnom** - Jinko guarantees annual degradation ≤0.4% (years 2-30) and ≥87.4% of nameplate power after 30 years. Most comparable Tier-1 brands offer 25-year linear warranties with an end-of-life floor of 84.8%, while standard PERC degrades at ~0.55%/year. The cumulative yield difference over 30 years can amount to several MWh per MWp installed. - **Low temperature coefficient of Pmax** - The temperature coefficient is -0.29%/°C versus a typical -0.35%/°C for PERC modules. At a cell operating temperature of 65°C (Δ=40°C from STC), power loss is 11.6% compared to 14.0% for PERC - roughly 2.4% more output during peak summer irradiance, material for utility-scale plants in Southern Europe and hot climates. - **BNEF #1 bankability - 10 consecutive years** - In 2025, 100% of respondents in the Bloomberg NEF PV Module Bankability Survey rated JinkoSolar as bankable - the only manufacturer to achieve a perfect score. A decade of #1 bankability rankings reduces lender risk perception, simplifies project finance underwriting, and broadens the pool of institutional investors for utility-scale and C&I projects. - **~85% bifaciality + dual-glass construction** - An ~85% bifaciality ratio combined with a glass-glass laminate delivers 5-25% additional energy gain from reflected irradiance in ground-mount (fixed-tilt and tracker), bright industrial rooftop, and elevated-structure applications. Dual glass eliminates EVA yellowing, improves microfracture resistance, and supports the ≤0.4%/year degradation guarantee throughout the full 30-year warranty period. ## Cons - **~32.4 kg weight - rooftop constraints** - The dual-glass construction (2×2 mm glass, 2382×1134×30 mm footprint) results in ~32.4 kg per module, approximately 5-7 kg heavier than framed monofacial modules of equivalent wattage (~25-27 kg). Installation requires a minimum two-person crew and a structural roof-load assessment, increasing labor and logistics costs for residential and small C&I rooftop projects. - **2021 series - Tiger Neo 3.0 now supersedes it** - The Jinko Tiger Neo 3.0 (mass production from 2024) offers 670 Wp at 24.8% efficiency and an improved temperature coefficient of -0.26%/°C, outperforming this series (650 Wp / 24.06% / -0.29%/°C) in the premium segment. Buyers should verify current availability and pricing of Tiger Neo 3.0 before committing to the 66HL4M-BDX for new projects. ## About this series Jinko Solar’s Tiger Neo 66HL4M-BDX series are bifacial dual-glass modules designed to maximize energy output where every square meter counts. Thanks to **N-type TOPCon cell technology**, the modules deliver high performance even in less-than-ideal conditions-high temperatures, transient periods, and partial shading. The **bifacial dual-glass construction** harnesses reflected light from the ground, effectively boosting energy production in ground-mounted installations, on light-colored rooftops, and in elevated structures. This solution is ideal for investors seeking long-term risk mitigation: the dual-glass design enhances environmental resilience and resistance to micro-cracks, while **anti-PID protection** maintains stable performance over time. Furthermore, the use of **SMBB wiring** improves current collection and tolerance to partial shading. The Tiger Neo 66HL4M-BDX is well-suited for utility-scale PV farms, C&I projects, and any application prioritizing high power density and decades of reliable performance. ## Notable figures - Efficiency of 24.1% is 1.7pp above the \*\*TOPCon 650-700W\*\* median (22.4%) - At 240.6 W/m² power density, this panel generates 16.9 W/m² more per unit area than \*\*TOPCon 650-700W\*\* median (223.7 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 650-700W\*\* median - At 38.8 kg, this panel is 4.2 kg heavier than the \*\*TOPCon 650-700W\*\* median (34.6 kg) - more demanding for installation crews - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How much extra energy does the bifacial Jinko Tiger Neo 66HL4M-BDX produce from its rear side? The bifacial dual-glass design allows the rear side of the module to capture light reflected from the ground or nearby surfaces. Under favorable conditions - such as ground-mount installations on elevated racking over high-albedo surfaces - the effective bifacial gain can reach up to 20% compared to a standard monofacial module. Actual gain depends on ground albedo and tilt angle. ### What warranty does the Jinko Solar Tiger Neo 66HL4M-BDX series carry? Jinko Solar provides a 12-year product warranty covering material and workmanship defects, and a 30-year linear power output warranty. After 30 years the module must retain at least 87.4% of its rated power, corresponding to an annual degradation of no more than 0.4%. As a Tier 1 manufacturer, Jinko Solar offers the financial stability needed to make long-term warranty claims enforceable. ### Is the Jinko Tiger Neo 66HL4M-BDX suitable for residential rooftops or only for utility-scale PV farms? Due to its large form factor (2382 × 1134 × 30 mm) and weight of approximately 38.8 kg, the 66HL4M-BDX is primarily designed for ground-mount farms and large C&I projects. Rooftop installation is technically feasible but the size and weight make handling difficult and require a more robust racking structure. For typical residential pitched roofs, smaller 60- or 54-cell modules are a more practical choice. ### How does TOPCon technology affect the performance of the Jinko 66HL4M-BDX on hot summer days? The temperature coefficient of Pmax for this series is -0.29%/°C, which is noticeably better than typical PERC modules at -0.35%/°C. This means the panel loses less power relative to its rated output on hot days. N-type TOPCon technology also delivers lower long-term degradation, resulting in higher cumulative energy yield over the full service life of the installation. ### What is SMBB in the Jinko Tiger Neo panels and why does it matter? SMBB (Super Multi Busbar) replaces a few wide busbars with many thin wire interconnects across each cell. In the 66HL4M-BDX series this translates to more efficient current collection, higher tolerance to micro-cracks, and reduced impact of partial shading on overall module output. The result is improved long-term reliability and more stable power delivery throughout the system's lifetime. ### Is the Jinko Tiger Neo 66HL4M-BDX series still available for purchase? Yes, the Tiger Neo 66HL4M-BDX (625-650 W) series is actively manufactured and available on the market. Modules can be purchased through authorized Jinko Solar distributors across Europe. Before placing an order it is worth confirming availability of a specific power variant (e.g., JKM640N or JKM650N) with your supplier, as stock levels for individual versions may vary. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/jkm625-650n-66hl4m-bdx-z1-eu-6-bf6713c1b5b2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +1.1 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +30 W, lighter, +1.1 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +0.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +0.9 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +50 W, lighter, +0.9 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | Cooler, lighter, +0.9 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +45 W, lighter, +0.8 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +0.7 pp | | [Jinko Solar JKM605-630N-66HL4M-BDV-F3-EN (605W column)](https://comparepv.com/panel/jinko-solar-jkm605-630n-66hl4m-bdv-f3-en-605w-column) | 605 W | -45 W, lighter, -1.7 pp | | [Jinko Solar JKM605-630N-66HL4M-BDV-F3-EN (610W column)](https://comparepv.com/panel/jinko-solar-jkm605-630n-66hl4m-bdv-f3-en-610w-column) | 610 W | -40 W, lighter, -1.5 pp | | [Jinko Solar JKM605-630N-66HL4M-BDV-F3-EN (615W column)](https://comparepv.com/panel/jinko-solar-jkm605-630n-66hl4m-bdv-f3-en-615w-column) | 615 W | -35 W, lighter, -1.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +0.7 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | Cooler, lighter, +0.7 pp | --- Source: https://comparepv.com/panel/jinko-solar-jkm625-650n-66hl4m-bdx-z1-eu Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.