Q-Cells Q.TRON XL-G2.3 / BFG 630 vs Q-Cells Q.TRON XL-G2.3 / BFG 635
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
630
21,255 kWh
635
21,423 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
630
635
Standard test conditions
25 °C
100.0% of rated power
630 W
635 W
Cool, bright day
40 °C
95.5% of rated power
602 W
606 W
Typical summer roof
55 °C
91.0% of rated power
573 W
578 W
Hot roof
70 °C
86.5% of rated power
545 W
549 W
03
Full specification
Parameter
630
635
Difference
Power and efficiency
Rated power
630 Wp
635 Wp
Effectively the same
Module efficiency
22.60 %
22.70 %
Effectively the same
Power density
225.7 Wp/m²
227.4 Wp/m²
Effectively the same
Open-circuit voltage
57.23 V
57.51 V
Effectively the same
Voltage at max power
47.89 V
48.09 V
Effectively the same
Short-circuit current
13.88 A
13.93 A
Effectively the same
Current at max power
13.15 A
13.21 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2462x1134x35 mm
2462x1134x35 mm
Same
Module area
2.792 m²
2.792 m²
Same
Weight
35.4 kg
35.4 kg
Same
Weight per kWp
56.2 kg/kWp
55.7 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.33 %/yr
0.33 %/yr
Same
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
156
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#3,658
vs
#3,307
635 leads by 351 places
Power density
#3,860
vs
#3,192
635 leads by 668 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#10,482
vs
#10,141
635 leads by 341 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,631
vs
#2,404
635 leads by 227 places
05
Open the full database
More useful comparisons
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Q-Cells Q.TRON XL-G2.3 / BFG 630 vs Q-Cells Q.TRON XL-G2.3 / BFG 645
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Q-Cells Q.TRON XL-G2.3 / BFG 630 vs Q-Cells Q.TRON XL-G2.3 / BFG 625
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Q-Cells Q.TRON XL-G2.3 / BFG 630 vs Q-Cells Q.TRON XL-G2.3 / BFG 615
3 differences, the largest is module efficiency
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Q-Cells Q.TRON XL-G2.3 / BFG 630 vs Q-Cells Q.TRON XL-G2.3 / BFG 610
4 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Q-Cells Q.TRON XL-G2.3 / BFG 630 or Q-Cells Q.TRON XL-G2.3 / BFG 635?
According to our database: Q-Cells Q.TRON XL-G2.3 / BFG 635 has higher module efficiency (22.70% vs 22.60%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Q-Cells Q.TRON XL-G2.3 / BFG 630 and Q-Cells Q.TRON XL-G2.3 / BFG 635?
Q-Cells Q.TRON XL-G2.3 / BFG 630 has a module efficiency of 22.60%, while Q-Cells Q.TRON XL-G2.3 / BFG 635 is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Q-Cells Q.TRON XL-G2.3 / BFG 630 use vs Q-Cells Q.TRON XL-G2.3 / BFG 635?
Q-Cells Q.TRON XL-G2.3 / BFG 630 uses N-type cells; Q-Cells Q.TRON XL-G2.3 / BFG 635 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 XL-G2.3 / BFG 630 and Q-Cells Q.TRON XL-G2.3 / BFG 635?
Q-Cells Q.TRON XL-G2.3 / BFG 630 has a 30 years power warranty; Q-Cells Q.TRON XL-G2.3 / BFG 635 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 Q-Cells Q.TRON XL-G2.3 / BFG 630 and Q-Cells Q.TRON XL-G2.3 / BFG 635 bifacial panels?
Both Q-Cells Q.TRON XL-G2.3 / BFG 630 and Q-Cells Q.TRON XL-G2.3 / BFG 635 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.
Shop prices: See 25 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.