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JKM670N-66QL6-BDX vs JKM475N-48QL6-DB-F4-EU 6 of 19 identical Swap Change panels

Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM475N-48QL6-DB-F4-EU

Jinko Solar JKM670N-66QL6-BDX
JKM670N-66QL6-BDX
670 Wp 24.80 % 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

13 differences, and they point both ways

The largest is module efficiency: 1.03 pp more efficient. 6 of 19 comparable parameters are identical.

See all 13 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter JKM670N-66QL6-BDX JKM475N-48QL6-DB-F4-EU Difference
Module efficiency 24.80 % 23.77 % 1.03 pp more efficient
Rated power 670 Wp 475 Wp 195 W more power
Power density 248.0 Wp/m² 237.7 Wp/m² 10.3 Wp/m² higher
Weight 38.8 kg 24.4 kg 14.4 kg lighter
Product warranty 12 yrs 25 yrs 13 yrs longer
Weight per kWp 57.9 kg/kWp 51.4 kg/kWp 6.5 kg/kWp lighter
Open-circuit voltage 50.60 V 36.44 V 14.16 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 42.92 V 31.13 V 11.79 V apart
Cell count 264 192 72 cells apart
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.
JKM670N-66QL6-BDX
22,655 kWh
JKM475N-48QL6-DB-F4-EU
16,061 kWh
Lifetime gap
6,594 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM670N-66QL6-BDX JKM475N-48QL6-DB-F4-EU
Standard test conditions 25 °C 100.0% of rated power 670 W 475 W
Cool, bright day 40 °C 96.1% of rated power 644 W 456 W
Typical summer roof 55 °C 92.2% of rated power 618 W 438 W
Hot roof 70 °C 88.3% of rated power 592 W 419 W
03

Full specification

Parameter JKM670N-66QL6-BDX JKM475N-48QL6-DB-F4-EU Difference
Power and efficiency
Rated power 670 Wp 475 Wp +195 W for JKM670N-66QL6-BDX
Module efficiency 24.80 % 23.77 % +1.03 pp for JKM670N-66QL6-BDX
Power density 248.0 Wp/m² 237.7 Wp/m² +10.3 Wp/m² for JKM670N-66QL6-BDX
Open-circuit voltage 50.60 V 36.44 V 14.16 V apart
Voltage at max power 42.92 V 31.13 V 11.79 V apart
Short-circuit current 16.34 A 15.85 A Effectively the same
Current at max power 15.61 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 38.8 kg 24.4 kg -14.4 kg for JKM475N-48QL6-DB-F4-EU
Weight per kWp 57.9 kg/kWp 51.4 kg/kWp -6.5 kg/kWp for JKM475N-48QL6-DB-F4-EU
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 264 192 72 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#12 vs #499
JKM670N-66QL6-BDX leads by 487 places
Power density
#14 vs #467
JKM670N-66QL6-BDX leads by 453 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#11,487 vs #4,743
JKM475N-48QL6-DB-F4-EU leads by 6,744 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#514 vs #3,930
JKM670N-66QL6-BDX leads by 3,416 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM650-670N-66QL6-BDV (670W class)
2 differences, the largest is weight
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)
2 differences, the largest is weight
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM645-670N-66QL6-BDV-L
3 differences, the largest is weight
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM670N-66QL6-BDV-F4-EU
3 differences, the largest is weight
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)
2 differences, the largest is weight
Same series, other bin
Jinko Solar JKM670N-66QL6-BDX vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)
2 differences, the largest is weight
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM670N-66QL6-BDX or Jinko Solar JKM475N-48QL6-DB-F4-EU?
According to our database: Jinko Solar JKM670N-66QL6-BDX has higher module efficiency (24.80% 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 JKM670N-66QL6-BDX and Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM670N-66QL6-BDX has a module efficiency of 24.80%, 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 JKM670N-66QL6-BDX use vs Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM670N-66QL6-BDX 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 JKM670N-66QL6-BDX and Jinko Solar JKM475N-48QL6-DB-F4-EU?
Jinko Solar JKM670N-66QL6-BDX 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 JKM670N-66QL6-BDX and Jinko Solar JKM475N-48QL6-DB-F4-EU bifacial panels?
Jinko Solar JKM670N-66QL6-BDX 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.

Shop prices: See 155 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.