--- title: "Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM620N-78HL4-BDV - Solar Panel Comparison | ComparePV" description: "Compare Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM620N-78HL4-BDV side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm620n-78hl4-bdv" updated: 2026-09-11 --- # Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM620N-78HL4-BDV 8 differences, and they point both ways The largest is rated power: 40 W more power. 10 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Jinko Solar JKM580N-72HL4-BDV](https://comparepv.com/panel/jinko-solar-jkm580n-72hl4-bdv) | [Jinko Solar JKM620N-78HL4-BDV](https://comparepv.com/panel/jinko-solar-jkm620n-78hl4-bdv) | | Manufacturer | Jinko Solar | Jinko Solar | | Power | 580 Wp | 620 Wp | | Efficiency | 22.45 % | 22.18 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | JKM580N-72HL4-BDV | JKM620N-78HL4-BDV | Difference | | --- | --- | --- | --- | | Rated power | 580 Wp | 620 Wp | +40 W for JKM620N-78HL4-BDV | | Open-circuit voltage | 51.47 V | 55.58 V | 4.11 V apart | | Module area | 2.583 m² | 2.795 m² | 0.212 m² apart | | Weight | 32.0 kg | 34.6 kg | -2.6 kg for JKM580N-72HL4-BDV | | Module efficiency | 22.45 % | 22.18 % | +0.27 pp for JKM580N-72HL4-BDV | | Cell count | 144 | 156 | 12 cells apart | | Voltage at max power | 42.59 V | 45.93 V | 3.34 V apart | | Dimensions | 2278x1134x30 mm | 2465x1134x30 mm | 2278x1134x30 mm vs 2465x1134x30 mm | ## Every compared parameter | Parameter | JKM580N-72HL4-BDV | JKM620N-78HL4-BDV | | --- | --- | --- | | Rated power | 580 Wp | 620 Wp | | Module efficiency | 22.45 % | 22.18 % | | Power density | 224.5 Wp/m² | 221.8 Wp/m² | | Open-circuit voltage | 51.47 V | 55.58 V | | Voltage at max power | 42.59 V | 45.93 V | | Short-circuit current | 14.37 A | 14.19 A | | Current at max power | 13.62 A | 13.50 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2278x1134x30 mm | 2465x1134x30 mm | | Module area | 2.583 m² | 2.795 m² | | Weight | 32.0 kg | 34.6 kg | | Weight per kWp | 55.2 kg/kWp | 55.8 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | - | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 156 | | Bifacial | Yes | Yes | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, JKM580N-72HL4-BDV:** 19,460 kWh - **Cumulative output, JKM620N-78HL4-BDV:** 20,802 kWh - **Gap:** 1,342 kWh ## Output when hot | Condition | Cell temperature | JKM580N-72HL4-BDV | JKM620N-78HL4-BDV | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 580 W | 620 W | 100.0% of rated power | | Cool, bright day | 40 °C | 554 W | 592 W | 95.5% of rated power | | Typical summer roof | 55 °C | 528 W | 564 W | 91.0% of rated power | | Hot roof | 70 °C | 502 W | 536 W | 86.5% of rated power | ## Against the whole database | Measure | JKM580N-72HL4-BDV | JKM620N-78HL4-BDV | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,620 | #5,930 | 14,005 | JKM580N-72HL4-BDV leads by 1,310 places | | Power density | #4,547 | #5,869 | 14,005 | JKM580N-72HL4-BDV leads by 1,322 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #9,588 | #10,192 | 14,005 | JKM580N-72HL4-BDV leads by 604 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,564 | #3,481 | 14,005 | JKM620N-78HL4-BDV leads by 1,083 places | ## Questions ### Which panel is better: Jinko Solar JKM580N-72HL4-BDV or Jinko Solar JKM620N-78HL4-BDV? According to our database: **Jinko Solar JKM580N-72HL4-BDV** has higher module efficiency (**22.45%** vs **22.18%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Jinko Solar JKM580N-72HL4-BDV and Jinko Solar JKM620N-78HL4-BDV? **Jinko Solar JKM580N-72HL4-BDV** has a module efficiency of **22.45%**, while **Jinko Solar JKM620N-78HL4-BDV** is **22.18%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Jinko Solar JKM580N-72HL4-BDV use vs Jinko Solar JKM620N-78HL4-BDV? **Jinko Solar JKM580N-72HL4-BDV** uses **N-type** cells; **Jinko Solar JKM620N-78HL4-BDV** uses **N-type**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on Jinko Solar JKM580N-72HL4-BDV and Jinko Solar JKM620N-78HL4-BDV? **Jinko Solar JKM580N-72HL4-BDV** has a **30 years** power warranty; **Jinko Solar JKM620N-78HL4-BDV** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are Jinko Solar JKM580N-72HL4-BDV and Jinko Solar JKM620N-78HL4-BDV bifacial panels? Both **Jinko Solar JKM580N-72HL4-BDV** and **Jinko Solar JKM620N-78HL4-BDV** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM615N-78HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm615n-78hl4-bdv) - 9 differences, the largest is rated power - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM610N-78HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm610n-78hl4-bdv) - 9 differences, the largest is module efficiency - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM605N-78HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm605n-78hl4-bdv) - 10 differences, the largest is module efficiency - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM575N-72HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm575n-72hl4-bdv) - The same specification on paper - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM570N-72HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm570n-72hl4-bdv) - 3 differences, the largest is module efficiency - [Jinko Solar JKM580N-72HL4-BDV vs Jinko Solar JKM565N-72HL4-BDV](https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm565n-72hl4-bdv) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/jinko-solar-jkm580n-72hl4-bdv/jinko-solar-jkm620n-78hl4-bdv Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.