JKM650-670N-66QL6-BDV-F2-EU (670W) vs TWMNH-66HD655 11 of 18 identical Swap Change panels

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Tongwei TWMNH-66HD655

Q: Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) or Tongwei TWMNH-66HD655?

According to our database: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) has higher module efficiency (24.80% vs 24.20%); Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) tolerates heat better (temp coeff -0.260%/°C vs -0.280%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) has a module efficiency of 24.80%, while Tongwei TWMNH-66HD655 is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) use vs Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) uses TOPCon cells; Tongwei TWMNH-66HD655 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 JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) has a 30 years power warranty; Tongwei TWMNH-66HD655 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 JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655 bifacial panels?

Both Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

JKM650-670N-66QL6-BDV-F2-EU (670W)

670 Wp 24.80 % TOPCon Bifacial

Open panel page Datasheet PDF

TWMNH-66HD655

655 Wp 24.20 % N-type Bifacial

Open panel page Datasheet PDF

The verdict

JKM650-670N-66QL6-BDV-F2-EU (670W) leads on the differences that matter

The largest is module efficiency: 0.60 pp more efficient. 11 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 7 differences

How alike are they

11 of 18 comparable
parameters are identical

identical differs not published

What actually differs

7 of 18 parameters

Parameter JKM650-670N-66QL6-BDV-F2-EU (670W) TWMNH-66HD655 Difference

Module efficiency 24.80 % 24.20 % 0.60 pp more efficient

Temperature coefficient -0.260 %/°C -0.280 %/°C 0.020 %/°C better in heat

Power density 248.0 Wp/m² 242.5 Wp/m² 5.6 Wp/m² higher

Rated power 670 Wp 655 Wp 15 W more power

Cell technology TOPCon N-type TOPCon vs N-type

Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower

Voltage at max power 43.09 V 41.78 V 1.31 V apart

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

JKM650-670N-66QL6-BDV-F2-EU (670W)

22,655 kWh

TWMNH-66HD655

21,977 kWh

Lifetime gap

678 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario JKM650-670N-66QL6-BDV-F2-EU (670W) TWMNH-66HD655

Standard test conditions 25 °C 100.0% of rated power 670 W 655 W

Cool, bright day 40 °C 95.8% of rated power 644 W 627 W

Typical summer roof 55 °C 91.6% of rated power 618 W 600 W

Hot roof 70 °C 87.4% of rated power 592 W 572 W

Full specification

Parameter JKM650-670N-66QL6-BDV-F2-EU (670W) TWMNH-66HD655 Difference

Power and efficiency

Rated power 670 Wp 655 Wp +15 W for JKM650-670N-66QL6-BDV-F2-EU (670W)

Module efficiency 24.80 % 24.20 % +0.60 pp for JKM650-670N-66QL6-BDV-F2-EU (670W)

Power density 248.0 Wp/m² 242.5 Wp/m² +5.6 Wp/m² for JKM650-670N-66QL6-BDV-F2-EU (670W)

Open-circuit voltage 50.98 V 50.15 V Effectively the same

Voltage at max power 43.09 V 41.78 V 1.31 V apart

Short-circuit current 16.22 A 16.52 A Effectively the same

Current at max power 15.55 A 15.68 A Effectively the same

Temperature

Temperature coefficient -0.260 %/°C -0.280 %/°C +0.020 %/°C for JKM650-670N-66QL6-BDV-F2-EU (670W)

Mechanical

Dimensions 2382x1134x30 mm 2382x1134x30 mm Same

Module area 2.701 m² 2.701 m² Same

Weight 32.5 kg 32.2 kg Effectively the same

Weight per kWp 48.5 kg/kWp 49.2 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for JKM650-670N-66QL6-BDV-F2-EU (670W)

Technology

Cell technology TOPCon N-type TOPCon vs N-type

Cell type Monocrystalline Monocrystalline Same

Cell count - 132 Not published by Jinko Solar

Bifacial Yes Yes Same

Against the whole database

14,129 panels

Efficiency

#13 vs #206

JKM650-670N-66QL6-BDV-F2-EU (670W) leads by 193 places

Power density

#15 vs #192

JKM650-670N-66QL6-BDV-F2-EU (670W) leads by 177 places

Heat behaviour

#515 vs #1,347

JKM650-670N-66QL6-BDV-F2-EU (670W) leads by 832 places

Weight

#2,326 vs #2,782

JKM650-670N-66QL6-BDV-F2-EU (670W) leads by 456 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#493 vs #1,006

JKM650-670N-66QL6-BDV-F2-EU (670W) leads by 513 places

More useful comparisons

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Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Jinko Solar JKM645-670N-66QL6-BDV-L

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Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Jinko Solar JKM670N-66QL6-BDV-F4-EU

One difference: cell technology

Same series, other bin

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)

The same specification on paper

Same series, other bin

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)

The same specification on paper

Same series, other bin

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) vs Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU

One difference: cell technology

Written summary

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Questions about this pairing

Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) or Tongwei TWMNH-66HD655?

According to our database: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) has higher module efficiency (24.80% vs 24.20%); Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) tolerates heat better (temp coeff -0.260%/°C vs -0.280%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) has a module efficiency of 24.80%, while Tongwei TWMNH-66HD655 is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) use vs Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) uses TOPCon cells; Tongwei TWMNH-66HD655 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 JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655?

Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) has a 30 years power warranty; Tongwei TWMNH-66HD655 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 JKM650-670N-66QL6-BDV-F2-EU (670W) and Tongwei TWMNH-66HD655 bifacial panels?

Both Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) and Tongwei TWMNH-66HD655 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Compare Jinko Solar and Tongwei as manufacturers Portfolio, efficiency, cell technologies and warranty terms

Shop prices: See 146 Jinko Solar offers · See 56 Tongwei 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.