--- title: "Jinko Solar JS540M144 Solar Panel: Specs & Datasheet | ComparePV" description: "Jinko Solar JS540M144 solar panel. Specs: 20.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jinko-solar-js540m144" image: "https://comparepv.com/og/panel/jinko-solar-js540m144.png" updated: 2026-09-11 --- # Jinko Solar JS540M144 Light for its output, short guarantee 709 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Jinko Solar - **Model:** JS540M144 - **Series:** JS-PERC SERIES - **Rated power:** 540 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (709 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 540 W | 535 W | Typical | | | Module efficiency | 20.90% | 20.90% | Typical | 10,148 | | Power density | 209.0 | 209.0 | Typical | 10,176 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,846 | | Weight (kg) | 27.0 kg | 28.3 kg | Strong - top 16% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 22% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.90% | 20.90% | Typical | 10,148 | | Power density | 209.0 | 209.0 | Typical | 10,176 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,846 | | Weight per kWp | 50.0 | 53.0 | Strong - top 16% | 3,329 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 22% | 9,912 | ### Strengths - **50.0 kg per kWp** - Top 16% of the PERC 500-550 W segment, against a median of 53.0. - **-0.340 %/°C temperature coefficient** - Top 23% of the PERC 500-550 W segment, against a median of -0.350. ### Watch out for - **25 year performance warranty** - Bottom 22% of the PERC 500-550 W segment, against a median of 30 yrs. - **Best for:** Residential and commercial. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 540 W - **Efficiency:** 20.90 % - **Voltage at Pmax (Vmp):** 41.55 V - **Current at Pmax (Imp):** 13.00 A - **Open-circuit voltage (Voc):** 49.50 V - **Short-circuit current (Isc):** 13.81 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 27.0 kg - **Area:** 2.58 m2 - **Power density:** 209.0 Wp/m2 ### Warranty and degradation - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Output after 30 years:** 443 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10148 of 14129 | | Power density | 10176 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 3329 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **BNEF Tier-1 & PVEL Top Performer** - JinkoSolar has maintained BNEF Tier-1 bankability status for over 8 consecutive quarters and earned PVEL Top Performer recognition across all 7 reliability categories in the 2025 PV Module Reliability Scorecard - for the 11th year in a row. This is one of the strongest combined signals of financial and technical credibility in the market. - **Up to 21.7% efficiency - above all peer comparables** - Peak module efficiency of 21.7% exceeds every listed peer: Shinson S-Max (21.48%), Phono Solar Bifacial Twinplus (21.48%), and Boviet VEGA (21.3%). Within the mono PERC technology class, this positions the JS-PERC Series at the top of the segment. - **Broad power range: 330-555 Wp across 9 variants** - Nine variants span both residential prosumer systems and commercial or utility-scale arrays. A unified brand and PERC technology stack across the full range simplifies BoS standardization and service procurement. - **Multiple in-process EL testing** - Multiple electroluminescence (EL) inspections during manufacturing detect microcracks before shipment. This is above-standard QC practice in mass-production PERC, reducing the risk of early in-field power degradation. ## Cons - **P-type PERC: higher LID degradation** - P-type PERC cells exhibit LID of 1.5-3% in year one and annual degradation of ~0.6-0.8% vs ~0.4-0.5% for N-type TOPCon (PVEL 2025 dataset). Over 25 years, PERC modules retain ~82-84% of nameplate power, while N-type TOPCon retains 85-87%. The warranted floor of 83.1% at year 25 leaves a very narrow margin. - **Monofacial only - no bifacial option** - The JS-PERC Series is strictly monofacial (is\_bifacial: false). The direct competitor Phono Solar Bifacial Twinplus (up to 555 Wp, 21.48% efficiency) adds 5-15% energy yield from reflected irradiance. On installations with high-albedo surfaces (gravel ballast, snow, white TPO membrane), this represents a real missed yield opportunity. ## About this series The Jinko Solar JS-PERC series is designed to genuinely increase energy yield under typical operating conditions - even when the weather is variable and sunlight is lower. The modules utilize mono PERC cells, which allow them to better "collect" light and operate more stably under weaker illumination. In practice, this means **higher energy production in the morning, evening, and on cloudy days**, as well as improved overall system profitability without the need to add more panels. The JS-PERC series stands out for its focus on quality: **multiple electroluminescence (EL) tests** help detect microcracks and reduce the risk of power loss over time. Additionally, the module design supports **lower losses in partially shaded conditions**, which is important on roofs with chimneys, skylights, or trees nearby. This series is particularly suitable for individuals and businesses that want **predictable yields and durability** - whether in residential or commercial installations, where energy cost and reliability are key factors. ## Notable figures - At 20.9% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - Power density of 209.0 W/m² matches the \*\*PERC 500-550W\*\* median - At -0.34%/°C, hot weather performance is typical for \*\*PERC 500-550W\*\* panels - 27.0 kg weight - 1.3 kg lighter than \*\*PERC 500-550W\*\* median (28.3 kg), reducing installation effort - Ranked #10148 out of 14129 panels for efficiency in the database ## Questions ### What is the power output warranty for Jinko Solar JS-PERC SERIES panels? The Jinko Solar JS-PERC SERIES comes with a 25-year linear power output warranty, with annual degradation capped at 0.55%. A separate 12-year product warranty covers material and workmanship defects. These are standard Tier 1 warranty terms from Jinko Solar, confirming the manufacturer's long-term after-sales reliability. ### Do Jinko Solar JS-PERC SERIES panels perform well on cloudy days and in low-light conditions? Yes, the mono PERC cells used in the JS-PERC SERIES respond better to diffuse and low-intensity light than standard polycrystalline cells. In practice this means higher energy output in the morning, in the evening, and on overcast days. The annual energy yield from a JS-PERC SERIES system is measurably higher even in regions with variable irradiance, with no need to add extra panels. ### What is PERC technology and why should I choose Jinko Solar JS-PERC SERIES? PERC, or Passivated Emitter and Rear Cell, is a cell technology where a passivation layer on the rear surface reflects light back into the cell for a second absorption pass. The mono PERC cells in the JS-PERC SERIES achieve higher efficiency than standard monocrystalline modules and deliver better output at reduced irradiance, translating into real financial gains without increasing the installation footprint. ### Is Jinko Solar JS-PERC SERIES suitable for a roof partially shaded by a chimney or trees? The JS-PERC SERIES features a design that reduces partial shading losses, which is especially relevant on roofs with chimneys, dormers, or nearby trees. Multiple EL (electroluminescence) tests during production minimize the risk of microcracks that can amplify shading effects. For severe or persistent shading, adding power optimizers or microinverters is still advisable. ### What is the maximum power of a JS-PERC SERIES panel and how many modules do I need for a home installation? The maximum rated power of a Jinko Solar JS-PERC SERIES module is 555 Wp. For a typical residential system in the 6-10 kWp range, you would need between approximately 11 and 19 panels. The high per-panel wattage means fewer modules for the same system size, simplifying installation and reducing racking and BoS costs. ### Are Jinko Solar JS-PERC SERIES panels bifacial? No, Jinko Solar JS-PERC SERIES modules are monofacial and capture light only from the front side. They do not generate additional power from ground-reflected irradiance. This is perfectly adequate for typical rooftop installations where rear-side gain would be negligible. Bifacial configurations are generally advantageous only in ground-mount or elevated systems with highly reflective surfaces. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/79bd4ae54d76abbb158387b5355ca3f5-df0a44e6d33f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +4.1 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +3.9 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +3.8 pp, +5 yr warranty | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, +3.8 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +3.7 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.6 pp | | [Jinko Solar JKM525M-72HL4-TV](https://comparepv.com/panel/jinko-solar-jkm525m-72hl4-tv) | 525 W | Heavier, -0.5 pp, +5 yr warranty | | [Jinko Solar JS182MHC144-525](https://comparepv.com/panel/jinko-solar-js182mhc144-525) | 525 W | -15 W, -0.6 pp | | [Jinko Solar JKM530M-72HL4-TV](https://comparepv.com/panel/jinko-solar-jkm530m-72hl4-tv) | 530 W | Heavier, -0.3 pp, +5 yr warranty | | [Jinko Solar JS182MHC144-530](https://comparepv.com/panel/jinko-solar-js182mhc144-530) | 530 W | -10 W, -0.4 pp | | [Jinko Solar JKM535M-72HL4-(V)-F3-EN](https://comparepv.com/panel/jinko-solar-jkm535m-72hl4-v-f3-en) | 535 W | Heavier | | [Jinko Solar JKM535M-72HL4-BDVP](https://comparepv.com/panel/jinko-solar-jkm535m-72hl4-bdvp) | 535 W | Heavier, +5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +100 W, cooler, +3.9 pp | --- Source: https://comparepv.com/panel/jinko-solar-js540m144 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.