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435 vs 425 16 of 19 identical Swap Change panels

Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2+ 425

Q-Cells Q.TRON BLK M-G2+ 435
Q.TRON BLK M-G2+ 435
435 Wp 22.30 % N-type
Open panel page Datasheet PDF
VS
Q-Cells Q.TRON BLK M-G2+ 425
Q.TRON BLK M-G2+ 425
425 Wp 21.80 % N-type
Open panel page Datasheet PDF
The verdict

435 leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 435 425 Difference
Module efficiency 22.30 % 21.80 % 0.50 pp more efficient
Power density 222.8 Wp/m² 217.6 Wp/m² 5.1 Wp/m² higher
Rated power 435 Wp 425 Wp 10 W more power
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.
435
14,676 kWh
425
14,338 kWh
Lifetime gap
338 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 435 425
Standard test conditions 25 °C 100.0% of rated power 435 W 425 W
Cool, bright day 40 °C 95.7% of rated power 416 W 407 W
Typical summer roof 55 °C 91.3% of rated power 397 W 388 W
Hot roof 70 °C 87.0% of rated power 378 W 370 W
03

Full specification

Parameter 435 425 Difference
Power and efficiency
Rated power 435 Wp 425 Wp +10 W for 435
Module efficiency 22.30 % 21.80 % +0.50 pp for 435
Power density 222.8 Wp/m² 217.6 Wp/m² +5.1 Wp/m² for 435
Open-circuit voltage 39.60 V 39.03 V Effectively the same
Voltage at max power 33.14 V 32.74 V Effectively the same
Short-circuit current 13.82 A 13.66 A Effectively the same
Current at max power 13.13 A 12.98 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1722x1134x30 mm 1722x1134x30 mm Same
Module area 1.953 m² 1.953 m² Same
Weight 21.2 kg 21.2 kg Same
Weight per kWp 48.7 kg/kWp 49.9 kg/kWp Effectively the same
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 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #7,022
435 leads by 1,922 places
Power density
#5,150 vs #7,172
435 leads by 2,022 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#2,435 vs #3,266
435 leads by 831 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#8,076 vs #9,034
435 leads by 958 places
05

More useful comparisons

Open the full database
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)
6 differences, the largest is weight
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2+ 440
One difference: module efficiency
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2.D1+/AC (Power class 435W)
5 differences, the largest is weight per kwp
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2.C1+/AC (Power class 430W)
6 differences, the largest is module efficiency
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2+ 430
One difference: module efficiency
Same series, other bin
Q-Cells Q.TRON BLK M-G2+ 435 vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)
8 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Q-Cells Q.TRON BLK M-G2+ 435 or Q-Cells Q.TRON BLK M-G2+ 425?
According to our database: Q-Cells Q.TRON BLK M-G2+ 435 has higher module efficiency (22.30% vs 21.80%). 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+ 435 and Q-Cells Q.TRON BLK M-G2+ 425?
Q-Cells Q.TRON BLK M-G2+ 435 has a module efficiency of 22.30%, while Q-Cells Q.TRON BLK M-G2+ 425 is 21.80%. 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+ 435 use vs Q-Cells Q.TRON BLK M-G2+ 425?
Q-Cells Q.TRON BLK M-G2+ 435 uses N-type cells; Q-Cells Q.TRON BLK M-G2+ 425 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+ 435 and Q-Cells Q.TRON BLK M-G2+ 425?
Q-Cells Q.TRON BLK M-G2+ 435 has a 25 years power warranty; Q-Cells Q.TRON BLK M-G2+ 425 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.

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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.