JKM650-670N-66QL6-BDV (670W class) vs JKM450-475N-48HL4M-DB-Z2-EN (455W) 3 of 18 identical Swap Change panels

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

Q: 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 (670W class) has higher module efficiency (24.80% vs 22.77%); Jinko Solar JKM650-670N-66QL6-BDV (670W 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.

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

Q: 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 (670W class) uses TOPCon cells; Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W) uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: 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 (670W class) has a 30 years power warranty; Jinko Solar JKM450-475N-48HL4M-DB-Z2-EN (455W) 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.

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

JKM650-670N-66QL6-BDV (670W class)

670 Wp 24.80 % TOPCon Bifacial

Open panel page Datasheet PDF

JKM450-475N-48HL4M-DB-Z2-EN (455W)

455 Wp 22.77 % TOPCon

Open panel page Datasheet PDF

The verdict

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.

See all 15 differences

How alike are they

3 of 18 comparable
parameters are identical

identical differs not published

What actually differs

15 of 18 parameters

Parameter JKM650-670N-66QL6-BDV (670W class) JKM450-475N-48HL4M-DB-Z2-EN (455W) Difference

Module efficiency 24.80 % 22.77 % 2.03 pp more efficient

Rated power 670 Wp 455 Wp 215 W more power

Power density 248.0 Wp/m² 227.7 Wp/m² 20.3 Wp/m² higher

Temperature coefficient -0.260 %/°C -0.290 %/°C 0.030 %/°C better in heat

Weight 32.5 kg 24.0 kg 8.5 kg lighter

Product warranty 12 yrs 25 yrs 13 yrs longer

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 lighter

Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower

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

What it means on a roof

Thirty years of production

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

Cell temperature

JKM650-670N-66QL6-BDV (670W class)

22,655 kWh

JKM450-475N-48HL4M-DB-Z2-EN (455W)

15,266 kWh

Lifetime gap

7,389 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario JKM650-670N-66QL6-BDV (670W class) JKM450-475N-48HL4M-DB-Z2-EN (455W)

Standard test conditions 25 °C 100.0% of rated power 670 W 455 W

Cool, bright day 40 °C 95.7% of rated power 644 W 435 W

Typical summer roof 55 °C 91.3% of rated power 618 W 415 W

Hot roof 70 °C 87.0% of rated power 592 W 396 W

Full specification

Parameter JKM650-670N-66QL6-BDV (670W class) JKM450-475N-48HL4M-DB-Z2-EN (455W) Difference

Power and efficiency

Rated power 670 Wp 455 Wp +215 W for JKM650-670N-66QL6-BDV (670W class)

Module efficiency 24.80 % 22.77 % +2.03 pp 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)

Open-circuit voltage 50.98 V 36.23 V 14.75 V apart

Voltage at max power 43.09 V 30.48 V 12.61 V apart

Short-circuit current 16.22 A 15.71 A 0.51 A apart

Current at max power 15.55 A 14.93 A 0.62 A apart

Temperature

Temperature coefficient -0.260 %/°C -0.290 %/°C +0.030 %/°C for JKM650-670N-66QL6-BDV (670W class)

Mechanical

Dimensions 2382x1134x30 mm 1762x1134x30 mm 2382x1134x30 mm vs 1762x1134x30 mm

Module area 2.701 m² 1.998 m² 0.703 m² apart

Weight 32.5 kg 24.0 kg -8.5 kg for JKM450-475N-48HL4M-DB-Z2-EN (455W)

Weight per kWp 48.5 kg/kWp 52.7 kg/kWp -4.2 kg/kWp for JKM650-670N-66QL6-BDV (670W class)

Warranty and degradation

Product warranty 12 yrs 25 yrs +13 yrs for JKM450-475N-48HL4M-DB-Z2-EN (455W)

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for JKM650-670N-66QL6-BDV (670W class)

Technology

Cell technology TOPCon TOPCon Same

Cell type Monocrystalline Monocrystalline Same

Cell count - 96 Not published by Jinko Solar

Bifacial Yes No Yes vs No

Against the whole database

14,269 panels

Efficiency

#17 vs #3,192

JKM650-670N-66QL6-BDV (670W class) leads by 3,175 places

Power density

#19 vs #3,006

JKM650-670N-66QL6-BDV (670W class) leads by 2,987 places

Heat behaviour

#521 vs #2,260

JKM650-670N-66QL6-BDV (670W class) leads by 1,739 places

Weight

#2,338 vs #6,504

JKM650-670N-66QL6-BDV (670W class) leads by 4,166 places

Warranty

#31 vs #31

Tied - the same position in the database

Overall

#512 vs #5,831

JKM650-670N-66QL6-BDV (670W class) leads by 5,319 places

More useful comparisons

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One difference: cell technology

Written summary

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Questions about this pairing

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.

Shop prices: See 151 Jinko Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.