---
title: "Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) - Solar Panel Comparison | ComparePV"
description: "Compare Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) 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-635w-variant/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin"
updated: 2026-09-11
---

# Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads on the differences that matter

The largest is module efficiency: 0.94 pp more efficient. 5 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant)](https://comparepv.com/panel/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant) | [Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)](https://comparepv.com/panel/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin) |
| Manufacturer | Jinko Solar | Jinko Solar |
| Power | 635 Wp | 735 Wp |
| Efficiency | 22.72 % | 23.66 % |
| Technology | N-type | TOPCon |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | JKM615-635N-78HL4-(V)-F6-EN (635W variant) | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) | Difference |
| --- | --- | --- | --- |
| Module efficiency | 22.72 % | 23.66 % | +0.94 pp for JKM710-735N-66HL5-BDV-Z3-EU (735W bin) |
| Rated power | 635 Wp | 735 Wp | +100 W for JKM710-735N-66HL5-BDV-Z3-EU (735W bin) |
| Power density | 227.2 Wp/m² | 236.6 Wp/m² | +9.4 Wp/m² for JKM710-735N-66HL5-BDV-Z3-EU (735W bin) |
| Weight | 29.5 kg | 37.5 kg | -8.0 kg for JKM615-635N-78HL4-(V)-F6-EN (635W variant) |
| Open-circuit voltage | 56.85 V | 49.52 V | 7.33 V apart |
| Short-circuit current | 14.04 A | 18.88 A | 4.84 A apart |
| Module area | 2.795 m² | 3.106 m² | 0.311 m² apart |
| Weight per kWp | 46.5 kg/kWp | 51.0 kg/kWp | -4.6 kg/kWp for JKM615-635N-78HL4-(V)-F6-EN (635W variant) |
| Cell technology | N-type | TOPCon | N-type vs TOPCon |
| Voltage at max power | 47.46 V | 41.23 V | 6.23 V apart |
| Current at max power | 13.38 A | 17.83 A | 4.45 A apart |
| Cell count | 156 | 132 | 24 cells apart |
| Bifacial | No | Yes | No vs Yes |
| Dimensions | 2465x1134x35 mm | 2384x1303x33 mm | 2465x1134x35 mm vs 2384x1303x33 mm |


## Every compared parameter


| Parameter | JKM615-635N-78HL4-(V)-F6-EN (635W variant) | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) |
| --- | --- | --- |
| Rated power | 635 Wp | 735 Wp |
| Module efficiency | 22.72 % | 23.66 % |
| Power density | 227.2 Wp/m² | 236.6 Wp/m² |
| Open-circuit voltage | 56.85 V | 49.52 V |
| Voltage at max power | 47.46 V | 41.23 V |
| Short-circuit current | 14.04 A | 18.88 A |
| Current at max power | 13.38 A | 17.83 A |
| Temperature coefficient | -0.290 %/°C | -0.290 %/°C |
| Dimensions | 2465x1134x35 mm | 2384x1303x33 mm |
| Module area | 2.795 m² | 3.106 m² |
| Weight | 29.5 kg | 37.5 kg |
| Weight per kWp | 46.5 kg/kWp | 51.0 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 | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 156 | 132 |
| Bifacial | No | Yes |


## Thirty-year yield

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Same temp coeff. for both panels (-0.290 %/°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, JKM615-635N-78HL4-(V)-F6-EN (635W variant):** 21,306 kWh
- **Cumulative output, JKM710-735N-66HL5-BDV-Z3-EU (735W bin):** 24,661 kWh
- **Gap:** 3,355 kWh


## Output when hot


| Condition | Cell temperature | JKM615-635N-78HL4-(V)-F6-EN (635W variant) | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 635 W | 735 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 607 W | 703 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 580 W | 671 W | 91.3% of rated power |
| Hot roof | 70 °C | 552 W | 639 W | 87.0% of rated power |


## Against the whole database


| Measure | JKM615-635N-78HL4-(V)-F6-EN (635W variant) | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #3,245 | #602 | 14,005 | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 2,643 places |
| Power density | #3,252 | #582 | 14,005 | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 2,670 places |
| Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database |
| Weight | #1,173 | #4,360 | 14,005 | JKM615-635N-78HL4-(V)-F6-EN (635W variant) leads by 3,187 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #2,249 | #239 | 14,005 | JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 2,010 places |


## Questions


### Which panel is better: Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) or Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)?

According to our database: **Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (**735 W** bin)** has higher module efficiency (**23.66%** vs **22.72%**). 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 (635W variant) and Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)?

**Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** has a module efficiency of **22.72%**, while **Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (**735 W** bin)** is **23.66%**. 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 (635W variant) use vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)?

**Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** uses **N-type** cells; **Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (**735 W** bin)** 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 JKM615-635N-78HL4-(V)-F6-EN (635W variant) and Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)?

**Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** has a **30 years** power warranty; **Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (**735 W** bin)** 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 JKM615-635N-78HL4-(V)-F6-EN (635W variant) and Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) bifacial panels?

**Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (**735 W** bin)** is bifacial (captures light from both faces); **Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (**635 W** variant)** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

- [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (630W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-630w-variant) - The same specification on paper
- [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-625w-variant) - 3 differences, the largest is module efficiency
- [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-620w-variant) - 3 differences, the largest is module efficiency
- [Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (615W variant)](https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant/jinkosolar-jkm615-635n-78hl4-v-f6-en-615w-variant) - 3 differences, the largest is module efficiency
- [Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) vs Jinko Solar JKM735N-66HL5-BDV-Z3-EU](https://comparepv.com/compare/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin/jinko-solar-jkm735n-66hl5-bdv-z3-eu) - The same specification on paper
- [Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) vs Jinko Solar JKM735N-66HL5-BDV-Z6-EU](https://comparepv.com/compare/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin/jinko-solar-jkm735n-66hl5-bdv-z6-eu) - The same specification on paper


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Source: https://comparepv.com/compare/jinkosolar-jkm615-635n-78hl4-v-f6-en-635w-variant/jinkosolar-jkm710-735n-66hl5-bdv-z3-eu-735w-bin

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.