Waaree BiN-21-625 vs Waaree BiN-21-620
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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.
625
20,970 kWh
620
20,802 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
625
620
Standard test conditions
25 °C
100.0% of rated power
625 W
620 W
Cool, bright day
40 °C
95.5% of rated power
597 W
592 W
Typical summer roof
55 °C
91.0% of rated power
569 W
564 W
Hot roof
70 °C
86.5% of rated power
541 W
536 W
03
Full specification
Parameter
625
620
Difference
Power and efficiency
Rated power
625 Wp
620 Wp
Effectively the same
Module efficiency
23.14 %
22.95 %
Effectively the same
Power density
231.4 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
49.30 V
49.10 V
Effectively the same
Voltage at max power
41.53 V
41.33 V
Effectively the same
Short-circuit current
16.07 A
16.02 A
Effectively the same
Current at max power
15.05 A
15.00 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2382x1134x35 mm
2382x1134x35 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
33.8 kg
33.8 kg
Same
Weight per kWp
54.1 kg/kWp
54.5 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
13,953 panels
Against the whole database
Efficiency
#1,490
vs
#2,241
625 leads by 751 places
Power density
#1,494
vs
#2,164
625 leads by 670 places
Heat behaviour
#6,051
vs
#6,051
Tied - the same position in the database
Weight
#8,250
vs
#8,800
625 leads by 550 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,236
vs
#2,570
625 leads by 334 places
05
Open the full database
More useful comparisons
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-635
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-630
The same specification on paper
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-615
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-610
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-605
3 differences, the largest is module efficiency
Same series, other bin
Waaree BiN-21-625 vs Waaree BiN-21-600
5 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Waaree BiN-21-625 or Waaree BiN-21-620?
According to our database: Waaree BiN-21-625 has higher module efficiency (23.14% vs 22.95%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree BiN-21-625 and Waaree BiN-21-620?
Waaree BiN-21-625 has a module efficiency of 23.14%, while Waaree BiN-21-620 is 22.95%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree BiN-21-625 use vs Waaree BiN-21-620?
Waaree BiN-21-625 uses TOPCon cells; Waaree BiN-21-620 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 Waaree BiN-21-625 and Waaree BiN-21-620?
Waaree BiN-21-625 has a 30 years power warranty; Waaree BiN-21-620 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 Waaree BiN-21-625 and Waaree BiN-21-620 bifacial panels?
Both Waaree BiN-21-625 and Waaree BiN-21-620 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 28 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.