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

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

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

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

Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W) has a module efficiency of 22.50%, while Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W) is 21.50%. 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.H1+/AC (Power class 440W) use vs Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W)?

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

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

440 Wp 22.50 % N-type

Open panel page Datasheet PDF

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

420 Wp 21.50 % 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 H1+/AC (Power class 440W) 1+/AC (Power class 420W) Difference

Module efficiency 22.50 % 21.50 % 1.00 pp more efficient

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

Rated power 440 Wp 420 Wp 20 W more power

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

Open-circuit voltage 39.88 V 38.75 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.

H1+/AC (Power class 440W)

14,844 kWh

1+/AC (Power class 420W)

14,170 kWh

Lifetime gap

674 kWh

Output when it is hot

Rated power carried across the range a module actually sees

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

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

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

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

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

Full specification

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

Power and efficiency

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

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

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

Open-circuit voltage 39.88 V 38.75 V 1.13 V apart

Voltage at max power 33.33 V 32.54 V Effectively the same

Short-circuit current 13.90 A 13.58 A Effectively the same

Current at max power 13.20 A 12.91 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 52.2 kg/kWp 54.6 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

#4,222 vs #7,958

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

Power density

#4,099 vs #7,882

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

#5,625 vs #9,019

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

Warranty

#9,798 vs #9,798

Tied - the same position in the database

Overall

#7,682 vs #9,518

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

More useful comparisons

Open the full database

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Written summary

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Questions about this pairing

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

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

Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) has a module efficiency of 22.50%, while Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420 W) is 21.50%. 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.H1+/AC (Power class 440W) use vs Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420W)?

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

Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440 W) has a 25 years power warranty; Q-Cells Q.TRON BLK M-G2.1+/AC (Power class 420 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 17 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.