--- title: "Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) - Solar Panel Comparison | ComparePV" description: "Compare Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant" updated: 2026-09-11 --- # Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) (635W variant) leads on the differences that matter The largest is module efficiency: 0.36 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant)](https://comparepv.com/panel/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant) | [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)](https://comparepv.com/panel/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant) | | Manufacturer | Jinko Solar | Jinko Solar | | Power | 625 Wp | 635 Wp | | Efficiency | 22.36 % | 22.72 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | (625W variant) | (635W variant) | Difference | | --- | --- | --- | --- | | Module efficiency | 22.36 % | 22.72 % | +0.36 pp for (635W variant) | | Power density | 223.6 Wp/m² | 227.2 Wp/m² | +3.6 Wp/m² for (635W variant) | | Rated power | 625 Wp | 635 Wp | +10 W for (635W variant) | ## Every compared parameter | Parameter | (625W variant) | (635W variant) | | --- | --- | --- | | Rated power | 625 Wp | 635 Wp | | Module efficiency | 22.36 % | 22.72 % | | Power density | 223.6 Wp/m² | 227.2 Wp/m² | | Open-circuit voltage | 56.55 V | 56.85 V | | Voltage at max power | 47.14 V | 47.46 V | | Short-circuit current | 13.92 A | 14.04 A | | Current at max power | 13.26 A | 13.38 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2465x1134x35 mm | 2465x1134x35 mm | | Module area | 2.795 m² | 2.795 m² | | Weight | 29.5 kg | 29.5 kg | | Weight per kWp | 47.2 kg/kWp | 46.5 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 156 | 156 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°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, (625W variant):** 20,970 kWh - **Cumulative output, (635W variant):** 21,306 kWh - **Gap:** 336 kWh ## Output when hot | Condition | Cell temperature | (625W variant) | (635W variant) | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 625 W | 635 W | 100.0% of rated power | | Cool, bright day | 40 °C | 598 W | 607 W | 95.7% of rated power | | Typical summer roof | 55 °C | 571 W | 580 W | 91.3% of rated power | | Hot roof | 70 °C | 543 W | 552 W | 87.0% of rated power | ## Against the whole database | Measure | (625W variant) | (635W variant) | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,007 | #3,245 | 14,005 | (635W variant) leads by 1,762 places | | Power density | #4,955 | #3,252 | 14,005 | (635W variant) leads by 1,703 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #1,578 | #1,173 | 14,005 | (635W variant) leads by 405 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,981 | #2,249 | 14,005 | (635W variant) leads by 732 places | ## Questions ### Which panel is better: Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) or Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)? According to our database: **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** has higher module efficiency (**22.72%** vs **22.36%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)? **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**625 W** variant)** has a module efficiency of **22.36%**, while **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** is **22.72%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) use vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)? **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**625 W** variant)** uses **N-type** cells; **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** 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 JKM615-635N-78HL4-(V)-F6-EN (625W variant) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)? **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**625 W** variant)** has a **30 years** power warranty; **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** 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. ## Related comparisons - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (630W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-630w-variant) - The same specification on paper - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-620w-variant) - The same specification on paper - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (615W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-615w-variant) - 3 differences, the largest is module efficiency - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin) - 14 differences, the largest is module efficiency - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM735N-66HL5-BDV-Z3-EU](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinko-solar-jkm735n-66hl5-bdv-z3-eu) - 14 differences, the largest is module efficiency - [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant) vs Jinko Solar JKM735N-66HL5-BDV-Z6-EU](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinko-solar-jkm735n-66hl5-bdv-z6-eu) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant 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.