Waaree WSM-390 vs Waaree WSM-395
VS
The verdict
395 leads on the differences that matter
The largest is module efficiency: 0.25 pp more efficient. 18 of 19 comparable parameters are identical.
See the one differenceHow alike are they
18
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
1 of 19 parameters
What actually differs
Parameter
390
395
Difference
Module efficiency
19.58 %
19.83 %
0.25 pp more efficient
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 (-0.370 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
390
12,194 kWh
395
12,350 kWh
Lifetime gap
156 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
390
395
Standard test conditions
25 °C
100.0% of rated power
390 W
395 W
Cool, bright day
40 °C
94.5% of rated power
368 W
373 W
Typical summer roof
55 °C
88.9% of rated power
347 W
351 W
Hot roof
70 °C
83.3% of rated power
325 W
329 W
03
Full specification
Parameter
390
395
Difference
Power and efficiency
Rated power
390 Wp
395 Wp
Effectively the same
Module efficiency
19.58 %
19.83 %
+0.25 pp for 395
Power density
195.9 Wp/m²
198.4 Wp/m²
Effectively the same
Open-circuit voltage
48.85 V
49.05 V
Effectively the same
Voltage at max power
40.10 V
40.28 V
Effectively the same
Short-circuit current
10.03 A
10.12 A
Effectively the same
Current at max power
9.73 A
9.81 A
Effectively the same
Temperature
Temperature coefficient
-0.370 %/°C
-0.370 %/°C
Same
Mechanical
Dimensions
1985x1003x35 mm
1985x1003x35 mm
Same
Module area
1.991 m²
1.991 m²
Same
Weight
21.5 kg
21.5 kg
Same
Weight per kWp
55.1 kg/kWp
54.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
10 yrs
10 yrs
Same
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.70 %/yr
0.70 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
72
72
Same
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#12,711
vs
#12,497
395 leads by 214 places
Power density
#12,682
vs
#12,472
395 leads by 210 places
Heat behaviour
#13,161
vs
#13,161
Tied - the same position in the database
Weight
#9,637
vs
#8,811
395 leads by 826 places
Warranty
#9,912
vs
#9,912
Tied - the same position in the database
Overall
#12,732
vs
#12,611
395 leads by 121 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: Waaree WSM-390 or Waaree WSM-395?
According to our database: Waaree WSM-395 has higher module efficiency (19.83% vs 19.58%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree WSM-390 and Waaree WSM-395?
Waaree WSM-390 has a module efficiency of 19.58%, while Waaree WSM-395 is 19.83%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree WSM-390 use vs Waaree WSM-395?
Waaree WSM-390 uses PERC cells; Waaree WSM-395 uses PERC. 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 Waaree WSM-390 and Waaree WSM-395?
Waaree WSM-390 has a 25 years power warranty; Waaree WSM-395 has a 25 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 25 Waaree 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.