JKM710-735N-66HL5-BDV-Z3-EU (735W bin) vs JKM615-635N-78HL4-(V)-F6-EN (620W variant) 5 of 19 identical Swap Change panels

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)

Q: Which panel is better: Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) or Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

According to our database: Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) has higher module efficiency (23.66% vs 22.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) has a module efficiency of 23.66%, while Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) is 22.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) use vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) uses TOPCon cells; Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) uses N-type. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) has a 30 years power warranty; Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) 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.

Q: Are Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) bifacial panels?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) is bifacial (captures light from both faces); Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

735 Wp 23.66 % TOPCon Bifacial

Open panel page Datasheet PDF

JKM615-635N-78HL4-(V)-F6-EN (620W variant)

620 Wp 22.18 % N-type

Open panel page Datasheet PDF

The verdict

JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads on the differences that matter

The largest is module efficiency: 1.48 pp more efficient. 5 of 19 comparable parameters are identical.

See all 14 differences

How alike are they

5 of 19 comparable
parameters are identical

identical differs

What actually differs

14 of 19 parameters

Parameter JKM710-735N-66HL5-BDV-Z3-EU (735W bin) JKM615-635N-78HL4-(V)-F6-EN (620W variant) Difference

Module efficiency 23.66 % 22.18 % 1.48 pp more efficient

Rated power 735 Wp 620 Wp 115 W more power

Power density 236.6 Wp/m² 221.8 Wp/m² 14.8 Wp/m² higher

Weight 37.5 kg 29.5 kg 8.0 kg lighter

Open-circuit voltage 49.52 V 56.40 V 6.88 V apart

Short-circuit current 18.88 A 13.86 A 5.02 A apart

Module area 3.106 m² 2.795 m² 0.311 m² apart

Weight per kWp 51.0 kg/kWp 47.6 kg/kWp 3.4 kg/kWp lighter

Cell technology TOPCon N-type TOPCon vs N-type

Voltage at max power 41.23 V 46.97 V 5.74 V apart

Current at max power 17.83 A 13.20 A 4.63 A apart

Cell count 132 156 24 cells apart

Bifacial Yes No Yes vs No

Dimensions 2384x1303x33 mm 2465x1134x35 mm 2384x1303x33 mm vs 2465x1134x35 mm

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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.

JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

24,661 kWh

JKM615-635N-78HL4-(V)-F6-EN (620W variant)

20,802 kWh

Lifetime gap

3,859 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario JKM710-735N-66HL5-BDV-Z3-EU (735W bin) JKM615-635N-78HL4-(V)-F6-EN (620W variant)

Standard test conditions 25 °C 100.0% of rated power 735 W 620 W

Cool, bright day 40 °C 95.7% of rated power 703 W 593 W

Typical summer roof 55 °C 91.3% of rated power 671 W 566 W

Hot roof 70 °C 87.0% of rated power 639 W 539 W

Full specification

Parameter JKM710-735N-66HL5-BDV-Z3-EU (735W bin) JKM615-635N-78HL4-(V)-F6-EN (620W variant) Difference

Power and efficiency

Rated power 735 Wp 620 Wp +115 W for JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

Module efficiency 23.66 % 22.18 % +1.48 pp for JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

Power density 236.6 Wp/m² 221.8 Wp/m² +14.8 Wp/m² for JKM710-735N-66HL5-BDV-Z3-EU (735W bin)

Open-circuit voltage 49.52 V 56.40 V 6.88 V apart

Voltage at max power 41.23 V 46.97 V 5.74 V apart

Short-circuit current 18.88 A 13.86 A 5.02 A apart

Current at max power 17.83 A 13.20 A 4.63 A apart

Temperature

Temperature coefficient -0.290 %/°C -0.290 %/°C Same

Mechanical

Dimensions 2384x1303x33 mm 2465x1134x35 mm 2384x1303x33 mm vs 2465x1134x35 mm

Module area 3.106 m² 2.795 m² 0.311 m² apart

Weight 37.5 kg 29.5 kg -8.0 kg for JKM615-635N-78HL4-(V)-F6-EN (620W variant)

Weight per kWp 51.0 kg/kWp 47.6 kg/kWp -3.4 kg/kWp for JKM615-635N-78HL4-(V)-F6-EN (620W variant)

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

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 132 156 24 cells apart

Bifacial Yes No Yes vs No

Against the whole database

14,005 panels

Efficiency

#602 vs #5,930

JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 5,328 places

Power density

#582 vs #5,869

JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 5,287 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#4,360 vs #1,761

JKM615-635N-78HL4-(V)-F6-EN (620W variant) leads by 2,599 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#239 vs #3,366

JKM710-735N-66HL5-BDV-Z3-EU (735W bin) leads by 3,127 places

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3 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) or Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

According to our database: Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735 W bin) has higher module efficiency (23.66% vs 22.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735 W bin) has a module efficiency of 23.66%, while Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620 W variant) is 22.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin) use vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735 W bin) uses TOPCon cells; Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620 W variant) 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 JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735 W bin) has a 30 years power warranty; Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620 W variant) 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 JKM710-735N-66HL5-BDV-Z3-EU (735W bin) and Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant) bifacial panels?

Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735 W bin) is bifacial (captures light from both faces); Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620 W variant) is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 172 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.