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JKM505-54HL4M-BDV vs JKM420N-54HL4-B 6 of 19 identical Swap Change panels

Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM420N-54HL4-B

Jinko Solar JKM505-54HL4M-BDV
JKM505-54HL4M-BDV
505 Wp 22.71 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
JKM420N-54HL4-B
420 Wp 21.51 % N-type
Open panel page Datasheet PDF
The verdict

JKM505-54HL4M-BDV leads on the differences that matter

The largest is module efficiency: 1.20 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 JKM505-54HL4M-BDV JKM420N-54HL4-B Difference
Module efficiency 22.71 % 21.51 % 1.20 pp more efficient
Rated power 505 Wp 420 Wp 85 W more power
Power density 227.1 Wp/m² 215.1 Wp/m² 12.0 Wp/m² higher
Weight 27.0 kg 22.0 kg 5.0 kg lighter
Product warranty 15 yrs 25 yrs 10 yrs longer
Module area 2.224 m² 1.953 m² 0.271 m² apart
Short-circuit current 15.68 A 13.80 A 1.88 A apart
Cell technology TOPCon N-type TOPCon vs N-type
Open-circuit voltage 40.55 V 38.15 V 2.40 V apart
Current at max power 14.78 A 13.11 A 1.67 A apart
Bifacial Yes No Yes vs No
Voltage at max power 34.17 V 32.04 V 2.13 V apart
Dimensions 1961x1134x30 mm 1722x1134x30 mm 1961x1134x30 mm vs 1722x1134x30 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JKM505-54HL4M-BDV
16,944 kWh
JKM420N-54HL4-B
14,092 kWh
Lifetime gap
2,852 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM505-54HL4M-BDV JKM420N-54HL4-B
Standard test conditions 25 °C 100.0% of rated power 505 W 420 W
Cool, bright day 40 °C 95.7% of rated power 483 W 402 W
Typical summer roof 55 °C 91.3% of rated power 461 W 383 W
Hot roof 70 °C 87.0% of rated power 439 W 365 W
03

Full specification

Parameter JKM505-54HL4M-BDV JKM420N-54HL4-B Difference
Power and efficiency
Rated power 505 Wp 420 Wp +85 W for JKM505-54HL4M-BDV
Module efficiency 22.71 % 21.51 % +1.20 pp for JKM505-54HL4M-BDV
Power density 227.1 Wp/m² 215.1 Wp/m² +12.0 Wp/m² for JKM505-54HL4M-BDV
Open-circuit voltage 40.55 V 38.15 V 2.40 V apart
Voltage at max power 34.17 V 32.04 V 2.13 V apart
Short-circuit current 15.68 A 13.80 A 1.88 A apart
Current at max power 14.78 A 13.11 A 1.67 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1961x1134x30 mm 1722x1134x30 mm 1961x1134x30 mm vs 1722x1134x30 mm
Module area 2.224 m² 1.953 m² 0.271 m² apart
Weight 27.0 kg 22.0 kg -5.0 kg for JKM420N-54HL4-B
Weight per kWp 53.5 kg/kWp 52.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 25 yrs +10 yrs for JKM420N-54HL4-B
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#3,285 vs #7,894
JKM505-54HL4M-BDV leads by 4,609 places
Power density
#3,312 vs #7,882
JKM505-54HL4M-BDV leads by 4,570 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,409 vs #5,859
JKM420N-54HL4-B leads by 1,550 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,177 vs #8,575
JKM505-54HL4M-BDV leads by 2,398 places
05

More useful comparisons

Open the full database
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Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM525-54HL4M-BDV
4 differences, the largest is module efficiency
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Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM520-54HL4M-BDV
3 differences, the largest is module efficiency
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Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM515-54HL4M-BDV
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Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM510-54HL4M-BDV
One difference: module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM500-54HL4M-BDV
One difference: module efficiency
Same series, other bin
Jinko Solar JKM505-54HL4M-BDV vs Jinko Solar JKM495-54HL4M-BDV
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM505-54HL4M-BDV or Jinko Solar JKM420N-54HL4-B?
According to our database: Jinko Solar JKM505-54HL4M-BDV has higher module efficiency (22.71% vs 21.51%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM505-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM505-54HL4M-BDV has a module efficiency of 22.71%, while Jinko Solar JKM420N-54HL4-B is 21.51%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM505-54HL4M-BDV use vs Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM505-54HL4M-BDV uses TOPCon cells; Jinko Solar JKM420N-54HL4-B 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 JKM505-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM505-54HL4M-BDV has a 30 years power warranty; Jinko Solar JKM420N-54HL4-B 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 JKM505-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B bifacial panels?
Jinko Solar JKM505-54HL4M-BDV is bifacial (captures light from both faces); Jinko Solar JKM420N-54HL4-B is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 173 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.