Skip to main content
PEAK DUO ML-G12S.3 / BFG 670 vs TRON BLK M-G2.E1+/AC (Power class 425W) 2 of 18 identical Swap Change panels

Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)

Q.PEAK DUO ML-G12S.3 / BFG 670
670 Wp 21.60 % Bifacial
Open panel page Datasheet PDF
VS
Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)
Q.TRON BLK M-G2.E1+/AC (Power class 425W)
425 Wp 21.80 % N-type
Open panel page Datasheet PDF
The verdict

TRON BLK M-G2.E1+/AC (Power class 425W) leads on the differences that matter

The largest is temperature coefficient: 0.040 %/°C better in heat. 2 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 16 differences
How alike are they
2 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

16 of 18 parameters
Parameter PEAK DUO ML-G12S.3 / BFG 670 TRON BLK M-G2.E1+/AC (Power class 425W) Difference
Temperature coefficient -0.340 %/°C -0.300 %/°C 0.040 %/°C better in heat
Rated power 670 Wp 425 Wp 245 W more power
Performance warranty 30 yrs 25 yrs 5 yrs longer
Weight 38.2 kg 22.9 kg 15.3 kg lighter
Product warranty 12 yrs 25 yrs 13 yrs longer
Annual degradation 0.45 %/yr 0.33 %/yr 0.12 %/yr slower
Open-circuit voltage 45.72 V 39.03 V 6.69 V apart
Short-circuit current 18.42 A 13.66 A 4.76 A apart
Module area 3.106 m² 1.953 m² 1.154 m² apart
Module efficiency 21.60 % 21.80 % 0.20 pp more efficient
Weight per kWp 57.0 kg/kWp 54.0 kg/kWp 3.0 kg/kWp lighter
Voltage at max power 38.27 V 32.74 V 5.53 V apart
Current at max power 17.51 A 12.98 A 4.53 A apart
Cell count 132 216 84 cells apart
Bifacial Yes No Yes vs No
Dimensions 2384x1303x35 mm 1722x1134x40 mm 2384x1303x35 mm vs 1722x1134x40 mm
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
PEAK DUO ML-G12S.3 / BFG 670
22,064 kWh
TRON BLK M-G2.E1+/AC (Power class 425W)
14,338 kWh
Lifetime gap
7,726 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario PEAK DUO ML-G12S.3 / BFG 670 TRON BLK M-G2.E1+/AC (Power class 425W)
Standard test conditions 25 °C 100.0% of rated power 670 W 425 W
Cool, bright day 40 °C 94.9% of rated power 636 W 406 W
Typical summer roof 55 °C 89.8% of rated power 602 W 387 W
Hot roof 70 °C 84.7% of rated power 567 W 368 W
03

Full specification

Parameter PEAK DUO ML-G12S.3 / BFG 670 TRON BLK M-G2.E1+/AC (Power class 425W) Difference
Power and efficiency
Rated power 670 Wp 425 Wp +245 W for PEAK DUO ML-G12S.3 / BFG 670
Module efficiency 21.60 % 21.80 % +0.20 pp for TRON BLK M-G2.E1+/AC (Power class 425W)
Power density 215.7 Wp/m² 217.6 Wp/m² Effectively the same
Open-circuit voltage 45.72 V 39.03 V 6.69 V apart
Voltage at max power 38.27 V 32.74 V 5.53 V apart
Short-circuit current 18.42 A 13.66 A 4.76 A apart
Current at max power 17.51 A 12.98 A 4.53 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.300 %/°C +0.040 %/°C for TRON BLK M-G2.E1+/AC (Power class 425W)
Mechanical
Dimensions 2384x1303x35 mm 1722x1134x40 mm 2384x1303x35 mm vs 1722x1134x40 mm
Module area 3.106 m² 1.953 m² 1.154 m² apart
Weight 38.2 kg 22.9 kg -15.3 kg for TRON BLK M-G2.E1+/AC (Power class 425W)
Weight per kWp 57.0 kg/kWp 54.0 kg/kWp -3.0 kg/kWp for TRON BLK M-G2.E1+/AC (Power class 425W)
Warranty and degradation
Product warranty 12 yrs 25 yrs +13 yrs for TRON BLK M-G2.E1+/AC (Power class 425W)
Performance warranty 30 yrs 25 yrs +5 yrs for PEAK DUO ML-G12S.3 / BFG 670
Annual degradation 0.45 %/yr 0.33 %/yr -0.12 %/yr for TRON BLK M-G2.E1+/AC (Power class 425W)
Technology
Cell technology - N-type Not published by Q-Cells
Cell type Monocrystalline Monocrystalline Same
Cell count 132 216 84 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#7,652 vs #7,022
TRON BLK M-G2.E1+/AC (Power class 425W) leads by 630 places
Power density
#7,644 vs #7,172
TRON BLK M-G2.E1+/AC (Power class 425W) leads by 472 places
Heat behaviour
#8,778 vs #6,093
TRON BLK M-G2.E1+/AC (Power class 425W) leads by 2,685 places
Weight
#11,008 vs #8,183
TRON BLK M-G2.E1+/AC (Power class 425W) leads by 2,825 places
Warranty
#21 vs #9,798
PEAK DUO ML-G12S.3 / BFG 670 leads by 9,777 places
Overall
#2,462 vs #9,093
PEAK DUO ML-G12S.3 / BFG 670 leads by 6,631 places
05

More useful comparisons

Open the full database
Same series, other bin
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 675
The same specification on paper
Same series, other bin
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 665
One difference: module efficiency
Same series, other bin
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 660
3 differences, the largest is module efficiency
Same series, other bin
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 655
3 differences, the largest is module efficiency
Same series, other bin
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 vs Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 650
3 differences, the largest is module efficiency
Same series, other bin
Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W) vs Q-Cells Q.TRON BLK M-G2.H1+/AC (Power class 440W)
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 or Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)?
According to our database: Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 W) has higher module efficiency (21.80% vs 21.60%); Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 W) tolerates heat better (temp coeff -0.300%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 and Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)?
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 has a module efficiency of 21.60%, while Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 W) 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.PEAK DUO ML-G12S.3 / BFG 670 use vs Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)?
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 uses Monocrystalline cells; Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 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.PEAK DUO ML-G12S.3 / BFG 670 and Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W)?
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 has a 30 years power warranty; Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 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.
Are Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 and Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425W) bifacial panels?
Q-Cells Q.PEAK DUO ML-G12S.3 / BFG 670 is bifacial (captures light from both faces); Q-Cells Q.TRON BLK M-G2.E1+/AC (Power class 425 W) is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 20 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.