Maxeon SPR-MAX3-400-COM vs Maxeon SPR-MAX3-415-R
VS
The verdict
400-COM leads on the differences that matter
The largest is module efficiency: 0.70 pp more efficient. 7 of 19 comparable parameters are identical.
See all 12 differencesHow alike are they
7
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
12 of 19 parameters
What actually differs
Parameter
400-COM
415-R
Difference
Module efficiency
22.60 %
21.90 %
0.70 pp more efficient
Power density
226.3 Wp/m²
219.0 Wp/m²
7.3 Wp/m² higher
Open-circuit voltage
75.40 V
40.60 V
34.80 V apart
Short-circuit current
6.57 A
13.10 A
6.53 A apart
Module area
1.768 m²
1.895 m²
0.128 m² apart
Weight
19.0 kg
21.2 kg
2.2 kg lighter
Rated power
400 Wp
415 Wp
15 W more power
Weight per kWp
47.5 kg/kWp
51.1 kg/kWp
3.6 kg/kWp lighter
Voltage at max power
66.00 V
34.50 V
31.50 V apart
Current at max power
6.07 A
12.03 A
5.96 A apart
Cell count
104
112
8 cells apart
Dimensions
1690x1046x40 mm
1812x1046x40 mm
1690x1046x40 mm vs 1812x1046x40 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 (-0.270 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
400-COM
13,590 kWh
415-R
14,100 kWh
Lifetime gap
510 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
400-COM
415-R
Standard test conditions
25 °C
100.0% of rated power
400 W
415 W
Cool, bright day
40 °C
96.0% of rated power
384 W
398 W
Typical summer roof
55 °C
91.9% of rated power
368 W
381 W
Hot roof
70 °C
87.8% of rated power
351 W
365 W
03
Full specification
Parameter
400-COM
415-R
Difference
Power and efficiency
Rated power
400 Wp
415 Wp
+15 W for 415-R
Module efficiency
22.60 %
21.90 %
+0.70 pp for 400-COM
Power density
226.3 Wp/m²
219.0 Wp/m²
+7.3 Wp/m² for 400-COM
Open-circuit voltage
75.40 V
40.60 V
34.80 V apart
Voltage at max power
66.00 V
34.50 V
31.50 V apart
Short-circuit current
6.57 A
13.10 A
6.53 A apart
Current at max power
6.07 A
12.03 A
5.96 A apart
Temperature
Temperature coefficient
-0.270 %/°C
-0.270 %/°C
Same
Mechanical
Dimensions
1690x1046x40 mm
1812x1046x40 mm
1690x1046x40 mm vs 1812x1046x40 mm
Module area
1.768 m²
1.895 m²
0.128 m² apart
Weight
19.0 kg
21.2 kg
-2.2 kg for 400-COM
Weight per kWp
47.5 kg/kWp
51.1 kg/kWp
-3.6 kg/kWp for 400-COM
Warranty and degradation
Product warranty
40 yrs
40 yrs
Same
Performance warranty
40 yrs
40 yrs
Same
Annual degradation
0.25 %/yr
0.25 %/yr
Same
Technology
Cell technology
Back Contact
Back Contact
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
104
112
8 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#3,658
vs
#6,783
400-COM leads by 3,125 places
Power density
#3,671
vs
#6,789
400-COM leads by 3,118 places
Heat behaviour
#1,280
vs
#1,280
Tied - the same position in the database
Weight
#1,726
vs
#4,418
400-COM leads by 2,692 places
Warranty
#1
vs
#1
Tied - the same position in the database
Overall
#2,534
vs
#2,872
400-COM leads by 338 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: Maxeon SPR-MAX3-400-COM or Maxeon SPR-MAX3-415-R?
According to our database: Maxeon SPR-MAX3-400-COM has higher module efficiency (22.60% vs 21.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Maxeon SPR-MAX3-400-COM and Maxeon SPR-MAX3-415-R?
Maxeon SPR-MAX3-400-COM has a module efficiency of 22.60%, while Maxeon SPR-MAX3-415-R is 21.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Maxeon SPR-MAX3-400-COM use vs Maxeon SPR-MAX3-415-R?
Maxeon SPR-MAX3-400-COM uses Back Contact cells; Maxeon SPR-MAX3-415-R uses Back Contact. 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 Maxeon SPR-MAX3-400-COM and Maxeon SPR-MAX3-415-R?
Maxeon SPR-MAX3-400-COM has a 40 years power warranty; Maxeon SPR-MAX3-415-R has a 40 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 26 Maxeon 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.