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MST12R620HN3G vs MSX10-435HN0B 4 of 18 identical Swap Change panels

Mission Solar MST12R620HN3G vs Mission Solar MSX10-435HN0B

Mission Solar
MST12R620HN3G
620 Wp 23.00 % N-type Bifacial
Open panel page Datasheet PDF
VS
Mission Solar MSX10-435HN0B
Mission Solar
MSX10-435HN0B
435 Wp 22.30 % N-type
Open panel page Datasheet PDF
The verdict

MST12R620HN3G leads on the differences that matter

The largest is module efficiency: 0.70 pp more efficient. 4 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 14 differences
How alike are they
4 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 18 parameters
Parameter MST12R620HN3G MSX10-435HN0B Difference
Module efficiency 23.00 % 22.30 % 0.70 pp more efficient
Rated power 620 Wp 435 Wp 185 W more power
Weight 33.0 kg 21.3 kg 11.7 kg lighter
Power density 229.5 Wp/m² 222.8 Wp/m² 6.8 Wp/m² higher
Open-circuit voltage 48.50 V 39.56 V 8.94 V apart
Short-circuit current 16.26 A 13.79 A 2.47 A apart
Module area 2.701 m² 1.953 m² 0.748 m² apart
Weight per kWp 53.2 kg/kWp 49.0 kg/kWp 4.3 kg/kWp lighter
Voltage at max power 40.24 V 33.31 V 6.93 V apart
Current at max power 15.41 A 13.07 A 2.34 A apart
Cell count 132 108 24 cells apart
Annual degradation 0.40 %/yr 0.45 %/yr 0.05 %/yr slower
Bifacial Yes No Yes vs No
Dimensions 2382x1134x30 mm 1722x1134x35 mm 2382x1134x30 mm vs 1722x1134x35 mm
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.
MST12R620HN3G
20,802 kWh
MSX10-435HN0B
14,482 kWh
Lifetime gap
6,320 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MST12R620HN3G MSX10-435HN0B
Standard test conditions 25 °C 100.0% of rated power 620 W 435 W
Cool, bright day 40 °C 95.7% of rated power 593 W 416 W
Typical summer roof 55 °C 91.3% of rated power 566 W 397 W
Hot roof 70 °C 87.0% of rated power 539 W 378 W
03

Full specification

Parameter MST12R620HN3G MSX10-435HN0B Difference
Power and efficiency
Rated power 620 Wp 435 Wp +185 W for MST12R620HN3G
Module efficiency 23.00 % 22.30 % +0.70 pp for MST12R620HN3G
Power density 229.5 Wp/m² 222.8 Wp/m² +6.8 Wp/m² for MST12R620HN3G
Open-circuit voltage 48.50 V 39.56 V 8.94 V apart
Voltage at max power 40.24 V 33.31 V 6.93 V apart
Short-circuit current 16.26 A 13.79 A 2.47 A apart
Current at max power 15.41 A 13.07 A 2.34 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 1722x1134x35 mm 2382x1134x30 mm vs 1722x1134x35 mm
Module area 2.701 m² 1.953 m² 0.748 m² apart
Weight 33.0 kg 21.3 kg -11.7 kg for MSX10-435HN0B
Weight per kWp 53.2 kg/kWp 49.0 kg/kWp -4.3 kg/kWp for MSX10-435HN0B
Warranty and degradation
Product warranty - 25 yrs Not published by Mission Solar
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.45 %/yr -0.05 %/yr for MST12R620HN3G
Technology
Cell technology N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 108 24 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#1,919 vs #5,100
MST12R620HN3G leads by 3,181 places
Power density
#2,191 vs #5,150
MST12R620HN3G leads by 2,959 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,064 vs #2,656
MSX10-435HN0B leads by 4,408 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,968 vs #6,928
MST12R620HN3G leads by 1,960 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Mission Solar MST12R620HN3G or Mission Solar MSX10-435HN0B?
According to our database: Mission Solar MST12R620HN3G has higher module efficiency (23.00% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Mission Solar MST12R620HN3G and Mission Solar MSX10-435HN0B?
Mission Solar MST12R620HN3G has a module efficiency of 23.00%, while Mission Solar MSX10-435HN0B is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MST12R620HN3G use vs Mission Solar MSX10-435HN0B?
Mission Solar MST12R620HN3G uses N-type cells; Mission Solar MSX10-435HN0B uses N-type. 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 Mission Solar MST12R620HN3G and Mission Solar MSX10-435HN0B?
Mission Solar MST12R620HN3G has a 30 years power warranty; Mission Solar MSX10-435HN0B 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 Mission Solar MST12R620HN3G and Mission Solar MSX10-435HN0B bifacial panels?
Mission Solar MST12R620HN3G is bifacial (captures light from both faces); Mission Solar MSX10-435HN0B is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 5 Mission Solar 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.