--- title: "Jinko Solar JKM625-650N-66HL4M-BDV-Z1-EN (630W) 630W Solar Panel - Specs & Review | ComparePV" description: "Jinko Solar JKM625-650N-66HL4M-BDV-Z1-EN (630W) 630W solar panel. Specs: 23.32% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/jinko-solar-co-ltd-jkm625-650n-66hl4m-bdv-z1-en-630w" updated: 2026-09-11 --- # Jinko Solar JKM625-650N-66HL4M-BDV-Z1-EN (630W) Efficiency leader, no clear weak spot 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Jinko Solar - **Model:** JKM625-650N-66HL4M-BDV-Z1-EN (630W) - **Series:** Tiger Neo 66HL4M-BDV (Bifacial module with dual glass) - **Rated power:** 630 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 630 W | 620 W | Typical | | | Module efficiency | 23.32% | 22.80% | Strong - top 15% | 973 | | Power density | 233.2 | 227.7 | Strong - top 16% | 1,003 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 32.4 kg | 32.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.32% | 22.80% | Strong - top 15% | 973 | | Power density | 233.2 | 227.7 | Strong - top 16% | 1,003 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 51.4 | 53.1 | Typical | 4,804 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.32% module efficiency** - Top 15% of the TOPCon 600-650 W segment, against a median of 22.80%. - **233.2 watts per square metre** - Top 16% of the TOPCon 600-650 W segment, against a median of 227.7. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 630 W - **Efficiency:** 23.32 % - **Voltage at Pmax (Vmp):** 41.02 V - **Current at Pmax (Imp):** 15.36 A - **Open-circuit voltage (Voc):** 49.48 V - **Short-circuit current (Isc):** 16.20 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:** 32.4 kg - **Area:** 2.70 m2 - **Power density:** 233.2 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:** 551 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 973 of 14005 | | Power density | 1003 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 4804 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Up to 24.06% efficiency – segment leader** - The top variant reaches 24.06% module efficiency at 650 Wp, outperforming all listed peer comparables: Astronergy ASTRO N5 (23.3%), BYD AURO N (23.25%), and Einnova TOPCon 630-650W (23.25%). This translates to approximately 3-4% more energy yield from the same mounting area compared to the closest competition. - **TOPCon N-type: LID-free, low temperature coefficient** - N-type TOPCon cells are immune to light-induced degradation (LID) and LeTID, which in standard PERC modules cause 1-3% power loss within the first weeks of operation. The temperature coefficient of Pmax is -0.29%/°C versus -0.35%/°C typical of PERC, resulting in meaningfully higher yield on hot days and in high-average-temperature climates. - **30-year linear power warranty at ≤0.4%/year** - The manufacturer guarantees ≥99% of rated power after year 1, followed by linear degradation of ≤0.4%/year, ensuring ≥87.4% Pmax after 30 years. Many competitors in the same price segment offer only 25-year warranties with a floor of approximately 84.8%, making this series more favorable in LCOE analysis for long-horizon investment projects. - **Bifacial dual-glass: up to +20% yield from reflected light** - The dual-glass construction enables rear-side power generation with a declared additional yield of up to 20% on high-albedo surfaces (light gravel, concrete, TPO/PVC membrane). The 2+2 mm double glass simultaneously provides a more effective moisture and UV barrier than a standard backsheet, positively impacting durability in installations exposed to harsh environments. - **BNEF #1 bankability – 10 consecutive years** - JinkoSolar achieved 100% bankability in the Bloomberg NEF PV Module Bankability Survey and has been ranked the world's most bankable PV brand for 10 consecutive years (Bloomberg NEF report, March 2025). For utility-scale PV projects and debt-financed installations, this is a critical argument in due diligence reviews by banks and infrastructure funds. ## Cons - **32.4 kg weight – structural load requirements** - The module weighs 32.4 kg, approximately 25-30% more than comparable single-glass monofacial modules of similar power class (typically 22-26 kg). For rooftop projects, this may require additional structural load analysis or reinforcement of the mounting substructure, increasing BoS costs relative to lighter monofacial alternatives. ## About this series The Jinko Solar Tiger Neo 66HL4M-BDV series are bifacial glass-glass modules, which truly increase yield where reflected and diffuse light matter - on light asphalt, concrete, membrane roofs, and also in elevated ground-mounted installations. The application of **bifacial generation** allows for better utilization of the same mounting surface and reduces the energy cost throughout the system’s entire life cycle. A key advantage of this series are the **N-type TOPCon cells**, valued for their stable performance over a long period and lower susceptibility to typical degradation mechanisms compared to many standard modules. Combined with **double glass**, this results in a better moisture barrier and higher resistance to harsh operating conditions, which is significant, for example, in installations exposed to environmental stress. Additionally, the series utilizes **SMBB**, supporting efficient current collection and helping maintain performance under non-ideal irradiance conditions. This is an excellent choice for PV farms, commercial projects, carports, and rooftops, where the investor expects high yield and durability without compromise. ## Notable figures - 23.3% module efficiency - 0.5pp better than the \*\*TOPCon 600-650W\*\* median of 22.8% - At 233.2 W/m² power density, this panel generates 5.5 W/m² more per unit area than \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 600-650W\*\* median - Ranked #973 out of 14005 panels for efficiency in the database ## Questions ### What is the temperature coefficient of the Jinko Tiger Neo 66HL4M-BDV and does it matter in summer? The temperature coefficient of Pmax is -0.29%/°C, which is among the best figures in this module class. Typical PERC modules usually reach -0.35%/°C or worse. In practice, this means the Tiger Neo 66HL4M-BDV loses less power on hot summer days than standard competition, translating into measurably higher annual energy yield in sun-intensive installations. ### What does bifacial technology offer in the Tiger Neo 66HL4M-BDV and when does it actually pay off? Bifacial modules generate power from both sides — the rear glass captures light reflected from the surface below (light gravel, concrete, roofing membrane, snow). Jinko states a potential rear-side bifacial gain of up to approximately 20% under favorable conditions. The benefit is greatest in ground-mounted systems with a bright albedo surface, carports, and flat roofs with white membranes. On dark roof tiles, the gain is minimal. ### What warranty does the Jinko Solar Tiger Neo 66HL4M-BDV carry? The Tiger Neo 66HL4M-BDV series comes with a 12-year product warranty covering material and workmanship defects, and a 30-year linear power warranty. After 30 years, the module is guaranteed to retain at least 87.4% of its rated power, with annual degradation not exceeding 0.4% after the first year. This represents one of the strongest warranty standards available among Tier 1 module manufacturers. ### How do N-type TOPCon cells in the Jinko Tiger Neo 66HL4M-BDV differ from standard PERC cells? TOPCon cells feature an additional tunnel oxide passivation layer that reduces carrier recombination, enabling module efficiency up to 24.06% for this series — versus roughly 21–22% for typical PERC. TOPCon also delivers lower annual degradation rates and greater resistance to PID (potential-induced degradation), which is particularly relevant in high-voltage string configurations. ### What types of installations are the Jinko Tiger Neo 66HL4M-BDV modules rated up to 650 W suited for? At up to 650 W per module, these panels are primarily intended for utility-scale PV farms, commercial and industrial rooftop projects, and carports. Higher wattage per unit reduces mounting time and lowers BoS costs — cabling, racking, and labor — per kilowatt of installed capacity. They are also well suited for large flat roofs on logistics or retail buildings where maximizing yield from available area is critical. ### Does the dual-glass construction of the Tiger Neo 66HL4M-BDV improve durability, and are these modules heavier than standard ones? The dual-glass (glass-glass) construction replaces the conventional backsheet with a second glass layer, creating a robust moisture barrier — important in environments exposed to condensation, corrosive atmospheres, or heavy snow loads. The module is certified for a static mechanical load of 5400 Pa front side and 2400 Pa rear side. Glass-glass modules typically weigh approximately 32–35 kg, more than backsheet equivalents, so racking structures must be designed to handle the additional load. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/jkm625-650n-66hl4m-bdv-z1-en-5875003edad3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +50 W, lighter, +1.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +45 W, lighter, +1.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.7 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +40 W, lighter, +1.5 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.5 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 | -25 W, -0.9 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 | -20 W, -0.7 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 | -15 W, -0.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +70 W, cooler, +1.7 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +65 W, cooler, +1.6 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +40 W, cooler, +1.5 pp | --- Source: https://comparepv.com/panel/jinko-solar-co-ltd-jkm625-650n-66hl4m-bdv-z1-en-630w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.