ZNShine ZXM8-TP132-670W vs ZNShine ZXM8-TP132-655
VS
The verdict
670W leads on the differences that matter
The largest is module efficiency: 0.48 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
670W
655
Difference
Module efficiency
21.57 %
21.09 %
0.48 pp more efficient
Power density
215.7 Wp/m²
210.9 Wp/m²
4.8 Wp/m² higher
Rated power
670 Wp
655 Wp
15 W more power
02
What it means on a roof
Thirty years of production
Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, 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.
670W
21,955 kWh
655
21,464 kWh
Lifetime gap
491 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
670W
655
Standard test conditions
25 °C
100.0% of rated power
670 W
655 W
Cool, bright day
40 °C
94.9% of rated power
636 W
622 W
Typical summer roof
55 °C
89.8% of rated power
602 W
588 W
Hot roof
70 °C
84.7% of rated power
567 W
555 W
03
Full specification
Parameter
670W
655
Difference
Power and efficiency
Rated power
670 Wp
655 Wp
+15 W for 670W
Module efficiency
21.57 %
21.09 %
+0.48 pp for 670W
Power density
215.7 Wp/m²
210.9 Wp/m²
+4.8 Wp/m² for 670W
Open-circuit voltage
46.00 V
45.40 V
Effectively the same
Voltage at max power
38.20 V
37.60 V
Effectively the same
Short-circuit current
18.62 A
18.47 A
Effectively the same
Current at max power
17.54 A
17.43 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
33.5 kg
33.5 kg
Same
Weight per kWp
50.0 kg/kWp
51.1 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
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#7,734
vs
#9,519
670W leads by 1,785 places
Power density
#7,644
vs
#9,459
670W leads by 1,815 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#3,317
vs
#4,503
670W leads by 1,186 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#3,392
vs
#4,439
670W leads by 1,047 places
05
Open the full database
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3 differences, the largest is module efficiency
Same series, other bin
ZNShine ZXM8-TP132-670W vs ZNShine ZXM8-TP132-660
3 differences, the largest is module efficiency
Same series, other bin
ZNShine ZXM8-TP132-670W vs ZNShine ZXM8-TP132-655W
3 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: ZNShine ZXM8-TP132-670W or ZNShine ZXM8-TP132-655?
According to our database: ZNShine ZXM8-TP132-670 W has higher module efficiency (21.57% vs 21.09%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of ZNShine ZXM8-TP132-670W and ZNShine ZXM8-TP132-655?
ZNShine ZXM8-TP132-670 W has a module efficiency of 21.57%, while ZNShine ZXM8-TP132-655 is 21.09%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does ZNShine ZXM8-TP132-670W use vs ZNShine ZXM8-TP132-655?
ZNShine ZXM8-TP132-670 W uses PERC cells; ZNShine ZXM8-TP132-655 uses PERC. 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 ZNShine ZXM8-TP132-670W and ZNShine ZXM8-TP132-655?
ZNShine ZXM8-TP132-670 W has a 25 years power warranty; ZNShine ZXM8-TP132-655 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 12 ZNShine 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.