---
title: "Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W) - Solar Panel Comparison | ComparePV"
description: "Compare Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W) 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-jkm650-670n-66ql6-bdv-670w-class/jinkosolar-jkm450-475n-48hl4m-db-z2-en-455w"
image: "https://comparepv.com/og/compare/panels/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinkosolar-jkm450-475n-48hl4m-db-z2-en-455w.png"
updated: 2026-09-11
---

# Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)

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

The largest is module efficiency: 2.03 pp more efficient. 3 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 JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | [Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)](https://comparepv.com/panel/jinkosolar-jkm450-475n-48hl4m-db-z2-en-455w) |
| Manufacturer | Jinko Solar | Jinko Solar |
| Power | 670 Wp | 455 Wp |
| Efficiency | 24.80 % | 22.77 % |
| Technology | TOPCon | TOPCon |


## Where they differ

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


| Parameter | JKM650-670N-66QL6-BDV (670W class) | JKM450-475N-48HL4M-DB-Z2-EN (455W) | Difference |
| --- | --- | --- | --- |
| Module efficiency | 24.80 % | 22.77 % | +2.03 pp for JKM650-670N-66QL6-BDV (670W class) |
| Rated power | 670 Wp | 455 Wp | +215 W for JKM650-670N-66QL6-BDV (670W class) |
| Power density | 248.0 Wp/m² | 227.7 Wp/m² | +20.3 Wp/m² for JKM650-670N-66QL6-BDV (670W class) |
| Temperature coefficient | -0.260 %/°C | -0.290 %/°C | +0.030 %/°C for JKM650-670N-66QL6-BDV (670W class) |
| Weight | 32.5 kg | 24.0 kg | -8.5 kg for JKM450-475N-48HL4M-DB-Z2-EN (455W) |
| Product warranty | 12 yrs | 25 yrs | +13 yrs for JKM450-475N-48HL4M-DB-Z2-EN (455W) |
| Open-circuit voltage | 50.98 V | 36.23 V | 14.75 V apart |
| Module area | 2.701 m² | 1.998 m² | 0.703 m² apart |
| Weight per kWp | 48.5 kg/kWp | 52.7 kg/kWp | -4.2 kg/kWp for JKM650-670N-66QL6-BDV (670W class) |
| Annual degradation | 0.35 %/yr | 0.40 %/yr | -0.05 %/yr for JKM650-670N-66QL6-BDV (670W class) |
| Voltage at max power | 43.09 V | 30.48 V | 12.61 V apart |
| Bifacial | Yes | No | Yes vs No |
| Short-circuit current | 16.22 A | 15.71 A | 0.51 A apart |
| Dimensions | 2382x1134x30 mm | 1762x1134x30 mm | 2382x1134x30 mm vs 1762x1134x30 mm |
| Current at max power | 15.55 A | 14.93 A | 0.62 A apart |


## Every compared parameter


| Parameter | JKM650-670N-66QL6-BDV (670W class) | JKM450-475N-48HL4M-DB-Z2-EN (455W) |
| --- | --- | --- |
| Rated power | 670 Wp | 455 Wp |
| Module efficiency | 24.80 % | 22.77 % |
| Power density | 248.0 Wp/m² | 227.7 Wp/m² |
| Open-circuit voltage | 50.98 V | 36.23 V |
| Voltage at max power | 43.09 V | 30.48 V |
| Short-circuit current | 16.22 A | 15.71 A |
| Current at max power | 15.55 A | 14.93 A |
| Temperature coefficient | -0.260 %/°C | -0.290 %/°C |
| Dimensions | 2382x1134x30 mm | 1762x1134x30 mm |
| Module area | 2.701 m² | 1.998 m² |
| Weight | 32.5 kg | 24.0 kg |
| Weight per kWp | 48.5 kg/kWp | 52.7 kg/kWp |
| Product warranty | 12 yrs | 25 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.35 %/yr | 0.40 %/yr |
| Cell technology | TOPCon | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | - | 96 |
| Bifacial | Yes | No |


## Thirty-year yield

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

- **Cumulative output, JKM650-670N-66QL6-BDV (670W class):** 22,655 kWh
- **Cumulative output, JKM450-475N-48HL4M-DB-Z2-EN (455W):** 15,266 kWh
- **Gap:** 7,389 kWh


## Output when hot


| Condition | Cell temperature | JKM650-670N-66QL6-BDV (670W class) | JKM450-475N-48HL4M-DB-Z2-EN (455W) | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 670 W | 455 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 644 W | 435 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 618 W | 415 W | 91.3% of rated power |
| Hot roof | 70 °C | 592 W | 396 W | 87.0% of rated power |


## Against the whole database


| Measure | JKM650-670N-66QL6-BDV (670W class) | JKM450-475N-48HL4M-DB-Z2-EN (455W) | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #17 | #3,192 | 14,269 | JKM650-670N-66QL6-BDV (670W class) leads by 3,175 places |
| Power density | #19 | #3,006 | 14,269 | JKM650-670N-66QL6-BDV (670W class) leads by 2,987 places |
| Heat behaviour | #521 | #2,260 | 14,269 | JKM650-670N-66QL6-BDV (670W class) leads by 1,739 places |
| Weight | #2,338 | #6,504 | 14,269 | JKM650-670N-66QL6-BDV (670W class) leads by 4,166 places |
| Warranty | #31 | #31 | 14,269 | Tied - the same position in the database |
| Overall | #512 | #5,831 | 14,269 | JKM650-670N-66QL6-BDV (670W class) leads by 5,319 places |


## Questions


### Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV (670W class) or Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)?

According to our database: **Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** has higher module efficiency (**24.80%** vs **22.77%**); **Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** tolerates heat better (temp coeff **-0.260%/°C** vs **-0.290%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV (670W class) and Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)?

**Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** has a module efficiency of **24.80%**, while **Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (**455 W**)** is **22.77%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Jinko Solar JKM650-670N-66QL6-BDV (670W class) use vs Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)?

**Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** uses **TOPCon** cells; **Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (**455 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 JKM650-670N-66QL6-BDV (670W class) and Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W)?

**Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** has a **30 years** power warranty; **Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (**455 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 JKM650-670N-66QL6-BDV (670W class) and Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W) bifacial panels?

**Jinko Solar JKM650-670N-66QL6-BDV (**670 W** class)** is bifacial (captures light from both faces); **Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (**455 W**)** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm650-670n-66ql6-bdv-f2-eu-670w) - The same specification on paper
- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM645-670N-66QL6-BDV-L](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm645-670n-66ql6-bdv-l) - One difference: cell technology
- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM670N-66QL6-BDV-F4-EU](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm670n-66ql6-bdv-f4-eu) - One difference: cell technology
- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm650-670n-66ql6-bdv-665w-class) - The same specification on paper
- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm650-670n-66ql6-bdv-f2-eu-665w) - The same specification on paper
- [Jinko Solar JKM650-670N-66QL6-BDV (670W class) vs Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU](https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinko-solar-jkm665n-66ql6-bdv-antiglare-f1-eu) - One difference: cell technology


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Source: https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-670w-class/jinkosolar-jkm450-475n-48hl4m-db-z2-en-455w

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.