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JKM650-670N-66QL6-BDV-F2-EU (665W) vs JKM475N-48QL6-DB-F4-EU 6 of 18 identical Swap Change panels

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM475N-48QL6-DB-F4-EU

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)
JKM650-670N-66QL6-BDV-F2-EU (665W)
665 Wp 24.62 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Jinko Solar JKM475N-48QL6-DB-F4-EU
JKM475N-48QL6-DB-F4-EU
475 Wp 23.77 % N-type
Open panel page Datasheet PDF
The verdict

JKM650-670N-66QL6-BDV-F2-EU (665W) 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.

See all 12 differences
How alike are they
6 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 18 parameters
Parameter JKM650-670N-66QL6-BDV-F2-EU (665W) JKM475N-48QL6-DB-F4-EU Difference
Module efficiency 24.62 % 23.77 % 0.85 pp more efficient
Rated power 665 Wp 475 Wp 190 W more power
Weight 32.5 kg 24.4 kg 8.1 kg lighter
Product warranty 12 yrs 25 yrs 13 yrs longer
Power density 246.2 Wp/m² 237.7 Wp/m² 8.5 Wp/m² higher
Open-circuit voltage 50.80 V 36.44 V 14.36 V apart
Module area 2.701 m² 1.998 m² 0.703 m² apart
Cell technology TOPCon N-type TOPCon vs N-type
Voltage at max power 42.96 V 31.13 V 11.83 V apart
Weight per kWp 48.9 kg/kWp 51.4 kg/kWp 2.5 kg/kWp lighter
Bifacial Yes No Yes vs No
Dimensions 2382x1134x30 mm 1762x1134x30 mm 2382x1134x30 mm vs 1762x1134x30 mm
02

What it means on a roof

Thirty years of production
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.
JKM650-670N-66QL6-BDV-F2-EU (665W)
22,486 kWh
JKM475N-48QL6-DB-F4-EU
16,061 kWh
Lifetime gap
6,425 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM650-670N-66QL6-BDV-F2-EU (665W) JKM475N-48QL6-DB-F4-EU
Standard test conditions 25 °C 100.0% of rated power 665 W 475 W
Cool, bright day 40 °C 96.1% of rated power 639 W 456 W
Typical summer roof 55 °C 92.2% of rated power 613 W 438 W
Hot roof 70 °C 88.3% of rated power 587 W 419 W
03

Full specification

Parameter JKM650-670N-66QL6-BDV-F2-EU (665W) JKM475N-48QL6-DB-F4-EU Difference
Power and efficiency
Rated power 665 Wp 475 Wp +190 W for JKM650-670N-66QL6-BDV-F2-EU (665W)
Module efficiency 24.62 % 23.77 % +0.85 pp for JKM650-670N-66QL6-BDV-F2-EU (665W)
Power density 246.2 Wp/m² 237.7 Wp/m² +8.5 Wp/m² for JKM650-670N-66QL6-BDV-F2-EU (665W)
Open-circuit voltage 50.80 V 36.44 V 14.36 V apart
Voltage at max power 42.96 V 31.13 V 11.83 V apart
Short-circuit current 16.16 A 15.85 A Effectively the same
Current at max power 15.48 A 15.26 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
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 24.4 kg -8.1 kg for JKM475N-48QL6-DB-F4-EU
Weight per kWp 48.9 kg/kWp 51.4 kg/kWp -2.5 kg/kWp for JKM650-670N-66QL6-BDV-F2-EU (665W)
Warranty and degradation
Product warranty 12 yrs 25 yrs +13 yrs for JKM475N-48QL6-DB-F4-EU
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.35 %/yr Same
Technology
Cell technology TOPCon N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count - 192 Not published by Jinko Solar
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#42 vs #499
JKM650-670N-66QL6-BDV-F2-EU (665W) leads by 457 places
Power density
#42 vs #467
JKM650-670N-66QL6-BDV-F2-EU (665W) leads by 425 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#2,555 vs #4,743
JKM650-670N-66QL6-BDV-F2-EU (665W) leads by 2,188 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#634 vs #3,930
JKM650-670N-66QL6-BDV-F2-EU (665W) leads by 3,296 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM650-670N-66QL6-BDV (670W class)
The same specification on paper
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)
The same specification on paper
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM645-670N-66QL6-BDV-L
One difference: cell technology
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM670N-66QL6-BDV-F4-EU
One difference: cell technology
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)
The same specification on paper
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) vs Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU
One difference: cell technology
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W) or Jinko Solar JKM475N-48QL6-DB-F4-EU?
According to our database: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665 W) 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 JKM650-670N-66QL6-BDV-F2-EU (665W) and Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665 W) has a module efficiency of 24.62%, while Jinko Solar JKM475N-48QL6-DB-F4-EU is 23.77%. 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-F2-EU (665W) use vs Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665 W) uses TOPCon cells; Jinko Solar JKM475N-48QL6-DB-F4-EU 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 JKM650-670N-66QL6-BDV-F2-EU (665W) and Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665 W) has a 30 years power warranty; Jinko Solar JKM475N-48QL6-DB-F4-EU 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-F2-EU (665W) and Jinko Solar JKM475N-48QL6-DB-F4-EU bifacial panels?
Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665 W) 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.

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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.