---
title: "Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV (665W class) - Solar Panel Comparison | ComparePV"
description: "Compare Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV (665W class) 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-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm650-670n-66ql6-bdv-665w-class"
updated: 2026-09-11
---

# Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)

JKM650-670N-66QL6-BDV (665W class) leads on the differences that matter

The largest is module efficiency: 0.85 pp more efficient. 6 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 JKM475N-48QL6-DB-F4-EU](https://comparepv.com/panel/jinko-solar-jkm475n-48ql6-db-f4-eu) | [Jinko Solar JKM650-670N-66QL6-BDV (665W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-665w-class) |
| Manufacturer | Jinko Solar | Jinko Solar |
| Power | 475 Wp | 665 Wp |
| Efficiency | 23.77 % | 24.62 % |
| Technology | N-type | TOPCon |


## Where they differ

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


| Parameter | JKM475N-48QL6-DB-F4-EU | JKM650-670N-66QL6-BDV (665W class) | Difference |
| --- | --- | --- | --- |
| Module efficiency | 23.77 % | 24.62 % | +0.85 pp for JKM650-670N-66QL6-BDV (665W class) |
| Rated power | 475 Wp | 665 Wp | +190 W for JKM650-670N-66QL6-BDV (665W class) |
| Weight | 24.4 kg | 32.5 kg | -8.1 kg for JKM475N-48QL6-DB-F4-EU |
| Product warranty | 25 yrs | 12 yrs | +13 yrs for JKM475N-48QL6-DB-F4-EU |
| Power density | 237.7 Wp/m² | 246.2 Wp/m² | +8.5 Wp/m² for JKM650-670N-66QL6-BDV (665W class) |
| Open-circuit voltage | 36.44 V | 50.80 V | 14.36 V apart |
| Module area | 1.998 m² | 2.701 m² | 0.703 m² apart |
| Cell technology | N-type | TOPCon | N-type vs TOPCon |
| Voltage at max power | 31.13 V | 42.96 V | 11.83 V apart |
| Weight per kWp | 51.4 kg/kWp | 48.9 kg/kWp | -2.5 kg/kWp for JKM650-670N-66QL6-BDV (665W class) |
| Bifacial | No | Yes | No vs Yes |
| Dimensions | 1762x1134x30 mm | 2382x1134x30 mm | 1762x1134x30 mm vs 2382x1134x30 mm |


## Every compared parameter


| Parameter | JKM475N-48QL6-DB-F4-EU | JKM650-670N-66QL6-BDV (665W class) |
| --- | --- | --- |
| Rated power | 475 Wp | 665 Wp |
| Module efficiency | 23.77 % | 24.62 % |
| Power density | 237.7 Wp/m² | 246.2 Wp/m² |
| Open-circuit voltage | 36.44 V | 50.80 V |
| Voltage at max power | 31.13 V | 42.96 V |
| Short-circuit current | 15.85 A | 16.16 A |
| Current at max power | 15.26 A | 15.48 A |
| Temperature coefficient | -0.260 %/°C | -0.260 %/°C |
| Dimensions | 1762x1134x30 mm | 2382x1134x30 mm |
| Module area | 1.998 m² | 2.701 m² |
| Weight | 24.4 kg | 32.5 kg |
| Weight per kWp | 51.4 kg/kWp | 48.9 kg/kWp |
| Product warranty | 25 yrs | 12 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.35 %/yr | 0.35 %/yr |
| Cell technology | N-type | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 192 | - |
| 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 (-0.260 %/°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, JKM475N-48QL6-DB-F4-EU:** 16,061 kWh
- **Cumulative output, JKM650-670N-66QL6-BDV (665W class):** 22,486 kWh
- **Gap:** 6,425 kWh


## Output when hot


| Condition | Cell temperature | JKM475N-48QL6-DB-F4-EU | JKM650-670N-66QL6-BDV (665W class) | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 475 W | 665 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 456 W | 639 W | 96.1% of rated power |
| Typical summer roof | 55 °C | 438 W | 613 W | 92.2% of rated power |
| Hot roof | 70 °C | 419 W | 587 W | 88.3% of rated power |


## Against the whole database


| Measure | JKM475N-48QL6-DB-F4-EU | JKM650-670N-66QL6-BDV (665W class) | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #499 | #42 | 14,005 | JKM650-670N-66QL6-BDV (665W class) leads by 457 places |
| Power density | #467 | #42 | 14,005 | JKM650-670N-66QL6-BDV (665W class) leads by 425 places |
| Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database |
| Weight | #4,743 | #2,555 | 14,005 | JKM650-670N-66QL6-BDV (665W class) leads by 2,188 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #3,930 | #634 | 14,005 | JKM650-670N-66QL6-BDV (665W class) leads by 3,296 places |


## Questions


### Which panel is better: Jinko Solar JKM475N-48QL6-DB-F4-EU or Jinko Solar JKM650-670N-66QL6-BDV (665W class)?

According to our database: **Jinko Solar JKM650-670N-66QL6-BDV (**665 W** class)** has higher module efficiency (**24.62%** vs **23.77%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Jinko Solar JKM475N-48QL6-DB-F4-EU and Jinko Solar JKM650-670N-66QL6-BDV (665W class)?

**Jinko Solar JKM475N-48QL6-DB-F4-EU** has a module efficiency of **23.77%**, while **Jinko Solar JKM650-670N-66QL6-BDV (**665 W** class)** is **24.62%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Jinko Solar JKM475N-48QL6-DB-F4-EU use vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)?

**Jinko Solar JKM475N-48QL6-DB-F4-EU** uses **N-type** cells; **Jinko Solar JKM650-670N-66QL6-BDV (**665 W** class)** 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 JKM475N-48QL6-DB-F4-EU and Jinko Solar JKM650-670N-66QL6-BDV (665W class)?

**Jinko Solar JKM475N-48QL6-DB-F4-EU** has a **30 years** power warranty; **Jinko Solar JKM650-670N-66QL6-BDV (**665 W** class)** 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 JKM475N-48QL6-DB-F4-EU and Jinko Solar JKM650-670N-66QL6-BDV (665W class) bifacial panels?

**Jinko Solar JKM650-670N-66QL6-BDV (**665 W** class)** is bifacial (captures light from both faces); **Jinko Solar JKM475N-48QL6-DB-F4-EU** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) - 12 differences, the largest is module efficiency
- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm650-670n-66ql6-bdv-f2-eu-670w) - 12 differences, the largest is module efficiency
- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM645-670N-66QL6-BDV-L](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm645-670n-66ql6-bdv-l) - 12 differences, the largest is module efficiency
- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM670N-66QL6-BDX](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm670n-66ql6-bdx) - 13 differences, the largest is module efficiency
- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM670N-66QL6-BDV-F4-EU](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm670n-66ql6-bdv-f4-eu) - 12 differences, the largest is module efficiency
- [Jinko Solar JKM475N-48QL6-DB-F4-EU vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)](https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm650-670n-66ql6-bdv-f2-eu-665w) - 12 differences, the largest is module efficiency


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Source: https://comparepv.com/compare/jinko-solar-jkm475n-48ql6-db-f4-eu/jinko-solar-jkm650-670n-66ql6-bdv-665w-class

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.