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RS8V-M TOPCON-430W vs RS8V435M-FB 15 of 19 identical Swap Change panels

Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V435M-FB

Resun Solar RS8V-M TOPCON-430W
Resun Solar
RS8V-M TOPCON-430W
430 Wp 22.02 % TOPCon
Open panel page Datasheet PDF
VS
Resun Solar
RS8V435M-FB
435 Wp 22.28 % TOPCon
Open panel page Datasheet PDF
The verdict

RS8V-M TOPCON-430W leads on the differences that matter

The largest is temperature coefficient: 0.050 %/°C better in heat. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter RS8V-M TOPCON-430W RS8V435M-FB Difference
Temperature coefficient -0.300 %/°C -0.350 %/°C 0.050 %/°C better in heat
Product warranty 12 yrs 15 yrs 3 yrs longer
Annual degradation 0.40 %/yr 0.50 %/yr 0.10 %/yr slower
Module efficiency 22.02 % 22.28 % 0.26 pp more efficient
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
RS8V-M TOPCON-430W
14,427 kWh
RS8V435M-FB
14,368 kWh
Lifetime gap
59 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario RS8V-M TOPCON-430W RS8V435M-FB
Standard test conditions 25 °C 100.0% of rated power 430 W 435 W
Cool, bright day 40 °C 94.8% of rated power 411 W 412 W
Typical summer roof 55 °C 89.5% of rated power 391 W 389 W
Hot roof 70 °C 84.2% of rated power 372 W 366 W
03

Full specification

Parameter RS8V-M TOPCON-430W RS8V435M-FB Difference
Power and efficiency
Rated power 430 Wp 435 Wp Effectively the same
Module efficiency 22.02 % 22.28 % +0.26 pp for RS8V435M-FB
Power density 220.2 Wp/m² 222.8 Wp/m² Effectively the same
Open-circuit voltage 38.40 V 37.97 V Effectively the same
Voltage at max power 32.20 V 32.25 V Effectively the same
Short-circuit current 14.24 A 14.35 A Effectively the same
Current at max power 13.36 A 13.49 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.350 %/°C +0.050 %/°C for RS8V-M TOPCON-430W
Mechanical
Dimensions 1722x1134x30 mm 1722x1134x30 mm Same
Module area 1.953 m² 1.953 m² Same
Weight 21.5 kg 21.5 kg Same
Weight per kWp 50.0 kg/kWp 49.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for RS8V435M-FB
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.50 %/yr -0.10 %/yr for RS8V-M TOPCON-430W
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#6,329 vs #5,403
RS8V435M-FB leads by 926 places
Power density
#6,481 vs #5,150
RS8V435M-FB leads by 1,331 places
Heat behaviour
#6,093 vs #10,419
RS8V-M TOPCON-430W leads by 4,326 places
Weight
#3,317 vs #2,936
RS8V435M-FB leads by 381 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,992 vs #9,138
RS8V435M-FB leads by 854 places
05

More useful comparisons

Open the full database
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M-DG
8 differences, the largest is module efficiency
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M-DG-440
8 differences, the largest is module efficiency
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M-435W FULL BLACK
3 differences, the largest is temperature coefficient
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M-DG-435
6 differences, the largest is product warranty
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M TOPCON-435W
One difference: module efficiency
Same series, other bin
Resun Solar
Resun Solar RS8V-M TOPCON-430W vs Resun Solar RS8V-M-430W FULL BLACK
2 differences, the largest is temperature coefficient
06

Written summary

07

Questions about this pairing

Which panel is better: Resun Solar RS8V-M TOPCON-430W or Resun Solar RS8V435M-FB?
According to our database: Resun Solar RS8V435M-FB has higher module efficiency (22.28% vs 22.02%); Resun Solar RS8V-M TOPCON-430 W tolerates heat better (temp coeff -0.300%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Resun Solar RS8V-M TOPCON-430W and Resun Solar RS8V435M-FB?
Resun Solar RS8V-M TOPCON-430 W has a module efficiency of 22.02%, while Resun Solar RS8V435M-FB is 22.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Resun Solar RS8V-M TOPCON-430W use vs Resun Solar RS8V435M-FB?
Resun Solar RS8V-M TOPCON-430 W uses TOPCon cells; Resun Solar RS8V435M-FB 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 RS8V-M TOPCON-430W and Resun Solar RS8V435M-FB?
Resun Solar RS8V-M TOPCON-430 W has a 30 years power warranty; Resun Solar RS8V435M-FB 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.