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JKM500-54HL4M-BDV vs JKM420N-54HL4-B 6 of 19 identical Swap Change panels

Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM420N-54HL4-B

Jinko Solar JKM500-54HL4M-BDV
JKM500-54HL4M-BDV
500 Wp 22.48 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
JKM420N-54HL4-B
420 Wp 21.51 % N-type
Open panel page Datasheet PDF
The verdict

JKM500-54HL4M-BDV leads on the differences that matter

The largest is module efficiency: 0.97 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 JKM500-54HL4M-BDV JKM420N-54HL4-B Difference
Module efficiency 22.48 % 21.51 % 0.97 pp more efficient
Rated power 500 Wp 420 Wp 80 W more power
Power density 224.8 Wp/m² 215.1 Wp/m² 9.8 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 15.63 A 13.80 A 1.83 A apart
Cell technology TOPCon N-type TOPCon vs N-type
Open-circuit voltage 40.38 V 38.15 V 2.23 V apart
Current at max power 14.73 A 13.11 A 1.62 A apart
Bifacial Yes No Yes vs No
Dimensions 1961x1134x30 mm 1722x1134x30 mm 1961x1134x30 mm vs 1722x1134x30 mm
Voltage at max power 33.95 V 32.04 V 1.91 V apart
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.
JKM500-54HL4M-BDV
16,776 kWh
JKM420N-54HL4-B
14,092 kWh
Lifetime gap
2,684 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM500-54HL4M-BDV JKM420N-54HL4-B
Standard test conditions 25 °C 100.0% of rated power 500 W 420 W
Cool, bright day 40 °C 95.7% of rated power 478 W 402 W
Typical summer roof 55 °C 91.3% of rated power 457 W 383 W
Hot roof 70 °C 87.0% of rated power 435 W 365 W
03

Full specification

Parameter JKM500-54HL4M-BDV JKM420N-54HL4-B Difference
Power and efficiency
Rated power 500 Wp 420 Wp +80 W for JKM500-54HL4M-BDV
Module efficiency 22.48 % 21.51 % +0.97 pp for JKM500-54HL4M-BDV
Power density 224.8 Wp/m² 215.1 Wp/m² +9.8 Wp/m² for JKM500-54HL4M-BDV
Open-circuit voltage 40.38 V 38.15 V 2.23 V apart
Voltage at max power 33.95 V 32.04 V 1.91 V apart
Short-circuit current 15.63 A 13.80 A 1.83 A apart
Current at max power 14.73 A 13.11 A 1.62 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 54.0 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
#4,565 vs #7,894
JKM500-54HL4M-BDV leads by 3,329 places
Power density
#4,468 vs #7,882
JKM500-54HL4M-BDV leads by 3,414 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,183 vs #5,859
JKM420N-54HL4-B leads by 2,324 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,659 vs #8,575
JKM500-54HL4M-BDV leads by 1,916 places
05

More useful comparisons

Open the full database
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Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM520-54HL4M-BDV
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Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM515-54HL4M-BDV
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Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM510-54HL4M-BDV
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Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM505-54HL4M-BDV
One difference: module efficiency
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Jinko Solar JKM500-54HL4M-BDV vs Jinko Solar JKM495-54HL4M-BDV
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM500-54HL4M-BDV or Jinko Solar JKM420N-54HL4-B?
According to our database: Jinko Solar JKM500-54HL4M-BDV has higher module efficiency (22.48% 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 JKM500-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM500-54HL4M-BDV has a module efficiency of 22.48%, 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 JKM500-54HL4M-BDV use vs Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM500-54HL4M-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 JKM500-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B?
Jinko Solar JKM500-54HL4M-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 JKM500-54HL4M-BDV and Jinko Solar JKM420N-54HL4-B bifacial panels?
Jinko Solar JKM500-54HL4M-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.

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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.