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M TOPCON-735 vs M-720 13 of 17 identical Swap Change panels

Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-720

Resun Solar RS9H-M TOPCON-735
Resun Solar
RS9H-M TOPCON-735
735 Wp 23.66 % TOPCon
Open panel page Datasheet PDF
VS
Resun Solar RS9H-M-720
Resun Solar
RS9H-M-720
720 Wp 23.18 % TOPCon Incomplete
Open panel page Datasheet PDF
The verdict

M TOPCON-735 leads on the differences that matter

The largest is module efficiency: 0.48 pp more efficient. 13 of 17 comparable parameters are identical, with 2 more left out because at least one datasheet does not publish them.

See all 4 differences
How alike are they
13 of 17 comparable
parameters are identical
identical differs not published
01

What actually differs

4 of 17 parameters
Parameter M TOPCON-735 M-720 Difference
Module efficiency 23.66 % 23.18 % 0.48 pp more efficient
Power density 236.6 Wp/m² 231.8 Wp/m² 4.8 Wp/m² higher
Rated power 735 Wp 720 Wp 15 W more power
Dimensions 2384x1303x30 mm 2384x1303x35 mm 2384x1303x30 mm vs 2384x1303x35 mm
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
M TOPCON-735
24,277 kWh
M-720
23,782 kWh
Lifetime gap
495 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario M TOPCON-735 M-720
Standard test conditions 25 °C 100.0% of rated power 735 W 720 W
Cool, bright day 40 °C 95.5% of rated power 702 W 688 W
Typical summer roof 55 °C 91.0% of rated power 669 W 655 W
Hot roof 70 °C 86.5% of rated power 636 W 623 W
03

Full specification

Parameter M TOPCON-735 M-720 Difference
Power and efficiency
Rated power 735 Wp 720 Wp +15 W for M TOPCON-735
Module efficiency 23.66 % 23.18 % +0.48 pp for M TOPCON-735
Power density 236.6 Wp/m² 231.8 Wp/m² +4.8 Wp/m² for M TOPCON-735
Open-circuit voltage 50.00 V 49.40 V Effectively the same
Voltage at max power 41.90 V 41.30 V Effectively the same
Short-circuit current 18.64 A 18.49 A Effectively the same
Current at max power 17.55 A 17.44 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 2384x1303x30 mm 2384x1303x35 mm 2384x1303x30 mm vs 2384x1303x35 mm
Module area 3.106 m² 3.106 m² Same
Weight 32.3 kg - Not published by Resun Solar
Weight per kWp 43.9 kg/kWp - Not published by Resun Solar
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.50 %/yr 0.50 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#602 vs #1,424
M TOPCON-735 leads by 822 places
Power density
#582 vs #1,347
M TOPCON-735 leads by 765 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#364 vs #13,988
M TOPCON-735 leads by 13,624 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#149 vs #535
M TOPCON-735 leads by 386 places
05

More useful comparisons

Open the full database
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M TOPCON-730
The same specification on paper
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M TOPCON-725
3 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M TOPCON-720
3 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-DG-720
7 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-715
4 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-DG-715
7 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Resun Solar RS9H-M TOPCON-735 or Resun Solar RS9H-M-720?
According to our database: Resun Solar RS9H-M TOPCON-735 has higher module efficiency (23.66% vs 23.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Resun Solar RS9H-M TOPCON-735 and Resun Solar RS9H-M-720?
Resun Solar RS9H-M TOPCON-735 has a module efficiency of 23.66%, while Resun Solar RS9H-M-720 is 23.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Resun Solar RS9H-M TOPCON-735 use vs Resun Solar RS9H-M-720?
Resun Solar RS9H-M TOPCON-735 uses TOPCon cells; Resun Solar RS9H-M-720 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 Resun Solar RS9H-M TOPCON-735 and Resun Solar RS9H-M-720?
Resun Solar RS9H-M TOPCON-735 has a 30 years power warranty; Resun Solar RS9H-M-720 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.

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.