1+/AC (Power class 420W) vs H1+/AC (Power class 440W) 14 of 19 identical Swap Change panels

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)

Q: Which panel is better: Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) or Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

According to our database: Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W) has higher module efficiency (22.50% vs 21.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) and Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) has a module efficiency of 21.50%, while Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W) is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) use vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) uses N-type cells; Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W) 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 Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) and Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) has a 25 years power warranty; Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W) has a 25 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.TRON BLK M-G2.1+/AC (Power class 420W)

420 Wp 21.50 % N-type

Open panel page Datasheet PDF

Q.TRON BLK M-G2.H1+/AC (Power class 440W)

440 Wp 22.50 % N-type

Open panel page Datasheet PDF

The verdict

H1+/AC (Power class 440W) leads on the differences that matter

The largest is module efficiency: 1.00 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences

How alike are they

14 of 19 comparable
parameters are identical

identical differs

What actually differs

5 of 19 parameters

Parameter 1+/AC (Power class 420W) H1+/AC (Power class 440W) Difference

Module efficiency 21.50 % 22.50 % 1.00 pp more efficient

Power density 215.1 Wp/m² 225.3 Wp/m² 10.2 Wp/m² higher

Rated power 420 Wp 440 Wp 20 W more power

Weight per kWp 54.6 kg/kWp 52.2 kg/kWp 2.5 kg/kWp lighter

Open-circuit voltage 38.75 V 39.88 V 1.13 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

Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

1+/AC (Power class 420W)

14,170 kWh

H1+/AC (Power class 440W)

14,844 kWh

Lifetime gap

674 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 1+/AC (Power class 420W) H1+/AC (Power class 440W)

Standard test conditions 25 °C 100.0% of rated power 420 W 440 W

Cool, bright day 40 °C 95.5% of rated power 401 W 420 W

Typical summer roof 55 °C 91.0% of rated power 382 W 400 W

Hot roof 70 °C 86.5% of rated power 363 W 381 W

Full specification

Parameter 1+/AC (Power class 420W) H1+/AC (Power class 440W) Difference

Power and efficiency

Rated power 420 Wp 440 Wp +20 W for H1+/AC (Power class 440W)

Module efficiency 21.50 % 22.50 % +1.00 pp for H1+/AC (Power class 440W)

Power density 215.1 Wp/m² 225.3 Wp/m² +10.2 Wp/m² for H1+/AC (Power class 440W)

Open-circuit voltage 38.75 V 39.88 V 1.13 V apart

Voltage at max power 32.54 V 33.33 V Effectively the same

Short-circuit current 13.58 A 13.90 A Effectively the same

Current at max power 12.91 A 13.20 A Effectively the same

Temperature

Temperature coefficient -0.300 %/°C -0.300 %/°C Same

Mechanical

Dimensions 1722x1134x40 mm 1722x1134x40 mm Same

Module area 1.953 m² 1.953 m² Same

Weight 22.9 kg 22.9 kg Same

Weight per kWp 54.6 kg/kWp 52.2 kg/kWp -2.5 kg/kWp for H1+/AC (Power class 440W)

Warranty and degradation

Product warranty 25 yrs 25 yrs Same

Performance warranty 25 yrs 25 yrs Same

Annual degradation 0.33 %/yr 0.33 %/yr Same

Technology

Cell technology N-type N-type Same

Cell type Monocrystalline Monocrystalline Same

Cell count 216 216 Same

Bifacial No No Same

Against the whole database

14,005 panels

Efficiency

#7,958 vs #4,222

H1+/AC (Power class 440W) leads by 3,736 places

Power density

#7,882 vs #4,099

H1+/AC (Power class 440W) leads by 3,783 places

Heat behaviour

#6,093 vs #6,093

Tied - the same position in the database

Weight

#9,019 vs #5,625

H1+/AC (Power class 440W) leads by 3,394 places

Warranty

#9,798 vs #9,798

Tied - the same position in the database

Overall

#9,518 vs #7,682

H1+/AC (Power class 440W) leads by 1,836 places

More useful comparisons

Open the full database

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Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W)

3 differences, the largest is module efficiency

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Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.TRON BLK M-G2.C1+/AC (Power class 430W)

3 differences, the largest is module efficiency

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Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)

One difference: module efficiency

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Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.TRON BLK M-G2+/AC (Power class 415W)

One difference: module efficiency

Same manufacturer

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 675

15 differences, the largest is temperature coefficient

Same manufacturer

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670

15 differences, the largest is temperature coefficient

Written summary

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Questions about this pairing

Which panel is better: Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) or Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

According to our database: Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) has higher module efficiency (22.50% vs 21.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) and Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420 W) has a module efficiency of 21.50%, while Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) use vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420 W) uses N-type cells; Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) 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 Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) and Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)?

Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420 W) has a 25 years power warranty; Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) has a 25 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.

Shop prices: See 28 Q-Cells 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.