--- title: "Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W) - Solar Panel Comparison | ComparePV" description: "Compare Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W) 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-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-520w" updated: 2026-09-11 --- # Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W) (520W) leads on the differences that matter The largest is module efficiency: 0.23 pp more efficient. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W)](https://comparepv.com/panel/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w) | [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W)](https://comparepv.com/panel/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-520w) | | Manufacturer | Jinko Solar | Jinko Solar | | Power | 515 Wp | 520 Wp | | Efficiency | 23.83 % | 24.06 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | (515W) | (520W) | Difference | | --- | --- | --- | --- | | Module efficiency | 23.83 % | 24.06 % | +0.23 pp for (520W) | ## Every compared parameter | Parameter | (515W) | (520W) | | --- | --- | --- | | Rated power | 515 Wp | 520 Wp | | Module efficiency | 23.83 % | 24.06 % | | Power density | 238.3 Wp/m² | 240.6 Wp/m² | | Open-circuit voltage | 39.35 V | 39.60 V | | Voltage at max power | 33.42 V | 33.57 V | | Short-circuit current | 15.96 A | 16.01 A | | Current at max power | 15.41 A | 15.49 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 1906x1134x30 mm | 1906x1134x30 mm | | Module area | 2.161 m² | 2.161 m² | | Weight | 26.3 kg | 26.3 kg | | Weight per kWp | 51.1 kg/kWp | 50.6 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.35 %/yr | 0.35 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 204 | 204 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.260 %/°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, (515W):** 17,414 kWh - **Cumulative output, (520W):** 17,583 kWh - **Gap:** 169 kWh ## Output when hot | Condition | Cell temperature | (515W) | (520W) | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 515 W | 520 W | 100.0% of rated power | | Cool, bright day | 40 °C | 495 W | 500 W | 96.1% of rated power | | Typical summer roof | 55 °C | 475 W | 479 W | 92.2% of rated power | | Hot roof | 70 °C | 455 W | 459 W | 88.3% of rated power | ## Against the whole database | Measure | (515W) | (520W) | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #415 | #268 | 14,005 | (520W) leads by 147 places | | Power density | #426 | #290 | 14,005 | (520W) leads by 136 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #4,402 | #3,985 | 14,005 | (520W) leads by 417 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,495 | #4,053 | 14,005 | (520W) leads by 442 places | ## Questions ### Which panel is better: Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) or Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W)? According to our database: **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**520 W**)** has higher module efficiency (**24.06%** vs **23.83%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) and Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W)? **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**515 W**)** has a module efficiency of **23.83%**, while **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**520 W**)** is **24.06%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) use vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W)? **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**515 W**)** uses **TOPCon** cells; **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**520 W**)** uses **TOPCon**. 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 JKM495-520N-51QL6-BDV-F2-EU (515W) and Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W)? **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**515 W**)** has a **30 years** power warranty; **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**520 W**)** 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 JKM495-520N-51QL6-BDV-F2-EU (515W) and Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (520W) bifacial panels? Both **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**515 W**)** and **Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (**520 W**)** 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 JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (510W)](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-510w) - One difference: module efficiency - [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (505W)](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-505w) - 3 differences, the largest is module efficiency - [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (500W)](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-500w) - 3 differences, the largest is module efficiency - [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (495W)](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-495w) - 5 differences, the largest is module efficiency - [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin) - 12 differences, the largest is rated power - [Jinko Solar JKM495-520N-51QL6-BDV-F2-EU (515W) vs Jinko Solar JKM735N-66HL5-BDV-Z3-EU](https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm735n-66hl5-bdv-z3-eu) - 12 differences, the largest is rated power --- Source: https://comparepv.com/compare/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-515w/jinko-solar-jkm495-520n-51ql6-bdv-f2-eu-520w 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.