Phono Solar PS705M13GFH-22/WNH vs Phono Solar PS620L8GFH-22/WNH
VS
The verdict
8 differences, and they point both ways
The largest is rated power: 85 W more power. 11 of 19 comparable parameters are identical.
See all 8 differencesHow alike are they
11
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
8 of 19 parameters
What actually differs
Parameter
PS705M13GFH-22/WNH
PS620L8GFH-22/WNH
Difference
Rated power
705 Wp
620 Wp
85 W more power
Weight
37.7 kg
32.6 kg
5.1 kg lighter
Short-circuit current
18.44 A
15.56 A
2.88 A apart
Module area
3.106 m²
2.701 m²
0.405 m² apart
Module efficiency
22.70 %
22.95 %
0.25 pp more efficient
Current at max power
17.40 A
14.90 A
2.50 A apart
Dimensions
2384x1303x33 mm
2382x1134x30 mm
2384x1303x33 mm vs 2382x1134x30 mm
Voltage at max power
40.58 V
41.62 V
1.04 V apart
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
PS705M13GFH-22/WNH
23,654 kWh
PS620L8GFH-22/WNH
20,802 kWh
Lifetime gap
2,852 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
PS705M13GFH-22/WNH
PS620L8GFH-22/WNH
Standard test conditions
25 °C
100.0% of rated power
705 W
620 W
Cool, bright day
40 °C
95.7% of rated power
674 W
593 W
Typical summer roof
55 °C
91.3% of rated power
644 W
566 W
Hot roof
70 °C
87.0% of rated power
613 W
539 W
03
Full specification
Parameter
PS705M13GFH-22/WNH
PS620L8GFH-22/WNH
Difference
Power and efficiency
Rated power
705 Wp
620 Wp
+85 W for PS705M13GFH-22/WNH
Module efficiency
22.70 %
22.95 %
+0.25 pp for PS620L8GFH-22/WNH
Power density
227.0 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
48.62 V
49.50 V
Effectively the same
Voltage at max power
40.58 V
41.62 V
1.04 V apart
Short-circuit current
18.44 A
15.56 A
2.88 A apart
Current at max power
17.40 A
14.90 A
2.50 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2384x1303x33 mm
2382x1134x30 mm
2384x1303x33 mm vs 2382x1134x30 mm
Module area
3.106 m²
2.701 m²
0.405 m² apart
Weight
37.7 kg
32.6 kg
-5.1 kg for PS620L8GFH-22/WNH
Weight per kWp
53.5 kg/kWp
52.6 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#3,364
vs
#2,320
PS620L8GFH-22/WNH leads by 1,044 places
Power density
#3,418
vs
#2,243
PS620L8GFH-22/WNH leads by 1,175 places
Heat behaviour
#2,220
vs
#2,220
Tied - the same position in the database
Weight
#7,503
vs
#6,256
PS620L8GFH-22/WNH leads by 1,247 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#759
vs
#2,125
PS705M13GFH-22/WNH leads by 1,366 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Phono Solar PS705M13GFH-22/WNH or Phono Solar PS620L8GFH-22/WNH?
According to our database: Phono Solar PS620L8GFH-22/WNH has higher module efficiency (22.95% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Phono Solar PS705M13GFH-22/WNH and Phono Solar PS620L8GFH-22/WNH?
Phono Solar PS705M13GFH-22/WNH has a module efficiency of 22.70%, while Phono Solar PS620L8GFH-22/WNH is 22.95%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Phono Solar PS705M13GFH-22/WNH use vs Phono Solar PS620L8GFH-22/WNH?
Phono Solar PS705M13GFH-22/WNH uses TOPCon cells; Phono Solar PS620L8GFH-22/WNH 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 Phono Solar PS705M13GFH-22/WNH and Phono Solar PS620L8GFH-22/WNH?
Phono Solar PS705M13GFH-22/WNH has a 30 years power warranty; Phono Solar PS620L8GFH-22/WNH 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 Phono Solar PS705M13GFH-22/WNH and Phono Solar PS620L8GFH-22/WNH bifacial panels?
Both Phono Solar PS705M13GFH-22/WNH and Phono Solar PS620L8GFH-22/WNH 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.
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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.