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JKM425N-54HL4R-B vs JKM520-54HL4M-BDV 6 of 19 identical Swap Change panels

Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM520-54HL4M-BDV

JKM425N-54HL4R-B
425 Wp 21.27 % N-type
Open panel page Datasheet PDF
VS
Jinko Solar JKM520-54HL4M-BDV
JKM520-54HL4M-BDV
520 Wp 23.38 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

JKM520-54HL4M-BDV leads on the differences that matter

The largest is module efficiency: 2.11 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 JKM425N-54HL4R-B JKM520-54HL4M-BDV Difference
Module efficiency 21.27 % 23.38 % 2.11 pp more efficient
Rated power 425 Wp 520 Wp 95 W more power
Power density 212.7 Wp/m² 233.8 Wp/m² 21.1 Wp/m² higher
Weight 22.0 kg 27.0 kg 5.0 kg lighter
Product warranty 25 yrs 15 yrs 10 yrs longer
Short-circuit current 13.58 A 15.83 A 2.25 A apart
Module area 1.998 m² 2.224 m² 0.226 m² apart
Cell technology N-type TOPCon N-type vs TOPCon
Open-circuit voltage 38.95 V 41.06 V 2.11 V apart
Current at max power 13.13 A 14.93 A 1.80 A apart
Bifacial No Yes No vs Yes
Voltage at max power 32.37 V 34.83 V 2.46 V apart
Dimensions 1762x1134x30 mm 1961x1134x30 mm 1762x1134x30 mm vs 1961x1134x30 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.
JKM425N-54HL4R-B
14,260 kWh
JKM520-54HL4M-BDV
17,447 kWh
Lifetime gap
3,187 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM425N-54HL4R-B JKM520-54HL4M-BDV
Standard test conditions 25 °C 100.0% of rated power 425 W 520 W
Cool, bright day 40 °C 95.7% of rated power 407 W 497 W
Typical summer roof 55 °C 91.3% of rated power 388 W 475 W
Hot roof 70 °C 87.0% of rated power 370 W 452 W
03

Full specification

Parameter JKM425N-54HL4R-B JKM520-54HL4M-BDV Difference
Power and efficiency
Rated power 425 Wp 520 Wp +95 W for JKM520-54HL4M-BDV
Module efficiency 21.27 % 23.38 % +2.11 pp for JKM520-54HL4M-BDV
Power density 212.7 Wp/m² 233.8 Wp/m² +21.1 Wp/m² for JKM520-54HL4M-BDV
Open-circuit voltage 38.95 V 41.06 V 2.11 V apart
Voltage at max power 32.37 V 34.83 V 2.46 V apart
Short-circuit current 13.58 A 15.83 A 2.25 A apart
Current at max power 13.13 A 14.93 A 1.80 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1961x1134x30 mm 1762x1134x30 mm vs 1961x1134x30 mm
Module area 1.998 m² 2.224 m² 0.226 m² apart
Weight 22.0 kg 27.0 kg -5.0 kg for JKM425N-54HL4R-B
Weight per kWp 51.8 kg/kWp 51.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 15 yrs +10 yrs for JKM425N-54HL4R-B
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology N-type TOPCon N-type vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No Yes No vs Yes
04

Against the whole database

14,129 panels
Efficiency
#8,918 vs #965
JKM520-54HL4M-BDV leads by 7,953 places
Power density
#8,800 vs #947
JKM520-54HL4M-BDV leads by 7,853 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#5,163 vs #5,374
JKM425N-54HL4R-B leads by 211 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,718 vs #4,911
JKM520-54HL4M-BDV leads by 3,807 places
05

More useful comparisons

Open the full database
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Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM525-54HL4M-BDV
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Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM515-54HL4M-BDV
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Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM510-54HL4M-BDV
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Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM505-54HL4M-BDV
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Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM500-54HL4M-BDV
14 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM425N-54HL4R-B vs Jinko Solar JKM495-54HL4M-BDV
14 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM425N-54HL4R-B or Jinko Solar JKM520-54HL4M-BDV?
According to our database: Jinko Solar JKM520-54HL4M-BDV has higher module efficiency (23.38% vs 21.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM425N-54HL4R-B and Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM425N-54HL4R-B has a module efficiency of 21.27%, while Jinko Solar JKM520-54HL4M-BDV is 23.38%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM425N-54HL4R-B use vs Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM425N-54HL4R-B uses N-type cells; Jinko Solar JKM520-54HL4M-BDV 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 JKM425N-54HL4R-B and Jinko Solar JKM520-54HL4M-BDV?
Jinko Solar JKM425N-54HL4R-B has a 30 years power warranty; Jinko Solar JKM520-54HL4M-BDV 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 JKM425N-54HL4R-B and Jinko Solar JKM520-54HL4M-BDV bifacial panels?
Jinko Solar JKM520-54HL4M-BDV is bifacial (captures light from both faces); Jinko Solar JKM425N-54HL4R-B is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 132 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.