ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-620
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.
615
20,313 kWh
620
20,479 kWh
Lifetime gap
166 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
615
620
Standard test conditions
25 °C
100.0% of rated power
615 W
620 W
Cool, bright day
40 °C
95.5% of rated power
587 W
592 W
Typical summer roof
55 °C
91.0% of rated power
560 W
564 W
Hot roof
70 °C
86.5% of rated power
532 W
536 W
03
Full specification
Parameter
615
620
Difference
Power and efficiency
Rated power
615 Wp
620 Wp
Effectively the same
Module efficiency
22.00 %
22.18 %
Effectively the same
Power density
220.0 Wp/m²
221.8 Wp/m²
Effectively the same
Open-circuit voltage
55.40 V
55.60 V
Effectively the same
Voltage at max power
45.80 V
46.00 V
Effectively the same
Short-circuit current
14.19 A
14.25 A
Effectively the same
Current at max power
13.43 A
13.48 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2465x1134x35 mm
2465x1134x35 mm
Same
Module area
2.795 m²
2.795 m²
Same
Weight
30.0 kg
30.0 kg
Same
Weight per kWp
48.8 kg/kWp
48.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.50 %/yr
0.50 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
156
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#6,517
vs
#5,930
620 leads by 587 places
Power density
#6,655
vs
#5,869
620 leads by 786 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#2,460
vs
#2,244
620 leads by 216 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#4,792
vs
#4,404
620 leads by 388 places
05
Open the full database
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14 differences, the largest is temperature coefficient
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: ZNShine ZXM7-UH156-615 or ZNShine ZXM7-UH156-620?
According to our database: ZNShine ZXM7-UH156-620 has higher module efficiency (22.18% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of ZNShine ZXM7-UH156-615 and ZNShine ZXM7-UH156-620?
ZNShine ZXM7-UH156-615 has a module efficiency of 22.00%, while ZNShine ZXM7-UH156-620 is 22.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does ZNShine ZXM7-UH156-615 use vs ZNShine ZXM7-UH156-620?
ZNShine ZXM7-UH156-615 uses TOPCon cells; ZNShine ZXM7-UH156-620 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 ZNShine ZXM7-UH156-615 and ZNShine ZXM7-UH156-620?
ZNShine ZXM7-UH156-615 has a 25 years power warranty; ZNShine ZXM7-UH156-620 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.