Ulica Solar UL-660M-132HV vs Ulica Solar UL-665M-132HV
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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
660M-132HV
21,390 kWh
665M-132HV
21,552 kWh
Lifetime gap
162 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
660M-132HV
665M-132HV
Standard test conditions
25 °C
100.0% of rated power
660 W
665 W
Cool, bright day
40 °C
94.9% of rated power
626 W
631 W
Typical summer roof
55 °C
89.8% of rated power
593 W
597 W
Hot roof
70 °C
84.7% of rated power
559 W
563 W
03
Full specification
Parameter
660M-132HV
665M-132HV
Difference
Power and efficiency
Rated power
660 Wp
665 Wp
Effectively the same
Module efficiency
21.25 %
21.41 %
Effectively the same
Power density
212.5 Wp/m²
214.1 Wp/m²
Effectively the same
Open-circuit voltage
45.70 V
45.80 V
Effectively the same
Voltage at max power
38.20 V
38.30 V
Effectively the same
Short-circuit current
18.44 A
18.53 A
Effectively the same
Current at max power
17.28 A
17.36 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
2384x1303x35 mm
2384x1303x35 mm
Same
Module area
3.106 m²
3.106 m²
Same
Weight
33.3 kg
33.3 kg
Same
Weight per kWp
50.5 kg/kWp
50.1 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.55 %/yr
0.55 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#8,904
vs
#8,280
665M-132HV leads by 624 places
Power density
#8,959
vs
#8,250
665M-132HV leads by 709 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#3,831
vs
#3,587
665M-132HV leads by 244 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#4,111
vs
#3,744
665M-132HV leads by 367 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Ulica Solar UL-660M-132HV or Ulica Solar UL-665M-132HV?
According to our database: Ulica Solar UL-665M-132HV has higher module efficiency (21.41% vs 21.25%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Ulica Solar UL-660M-132HV and Ulica Solar UL-665M-132HV?
Ulica Solar UL-660M-132HV has a module efficiency of 21.25%, while Ulica Solar UL-665M-132HV is 21.41%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Ulica Solar UL-660M-132HV use vs Ulica Solar UL-665M-132HV?
Ulica Solar UL-660M-132HV uses TOPCon cells; Ulica Solar UL-665M-132HV uses TOPCon. 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 Ulica Solar UL-660M-132HV and Ulica Solar UL-665M-132HV?
Ulica Solar UL-660M-132HV has a 25 years power warranty; Ulica Solar UL-665M-132HV 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.