Horay Solar HS615TC-MHC-D vs Horay Solar HS620TC-MHC-D
VS
The verdict
Identical on every published parameter
All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. 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
18
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
0 of 18 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 first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
HS615TC-MHC-D
20,634 kWh
HS620TC-MHC-D
20,802 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
HS615TC-MHC-D
HS620TC-MHC-D
Standard test conditions
25 °C
100.0% of rated power
615 W
620 W
Cool, bright day
40 °C
95.8% of rated power
589 W
594 W
Typical summer roof
55 °C
91.6% of rated power
563 W
568 W
Hot roof
70 °C
87.4% of rated power
538 W
542 W
03
Full specification
Parameter
HS615TC-MHC-D
HS620TC-MHC-D
Difference
Power and efficiency
Rated power
615 Wp
620 Wp
Effectively the same
Module efficiency
22.80 %
22.90 %
Effectively the same
Power density
227.7 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
49.16 V
49.40 V
Effectively the same
Voltage at max power
40.85 V
41.05 V
Effectively the same
Short-circuit current
15.90 A
15.95 A
Effectively the same
Current at max power
15.05 A
15.10 A
Effectively the same
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
33.7 kg
33.7 kg
Same
Weight per kWp
54.8 kg/kWp
54.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
-
-
Neither datasheet publishes this
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#2,714
vs
#2,359
HS620TC-MHC-D leads by 355 places
Power density
#3,077
vs
#2,191
HS620TC-MHC-D leads by 886 places
Heat behaviour
#1,309
vs
#1,309
Tied - the same position in the database
Weight
#9,202
vs
#8,659
HS620TC-MHC-D leads by 543 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,361
vs
#2,145
HS620TC-MHC-D leads by 216 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Horay Solar HS615TC-MHC-D or Horay Solar HS620TC-MHC-D?
According to our database: Horay Solar HS620TC-MHC-D has higher module efficiency (22.90% vs 22.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Horay Solar HS615TC-MHC-D and Horay Solar HS620TC-MHC-D?
Horay Solar HS615TC-MHC-D has a module efficiency of 22.80%, while Horay Solar HS620TC-MHC-D is 22.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Horay Solar HS615TC-MHC-D use vs Horay Solar HS620TC-MHC-D?
Horay Solar HS615TC-MHC-D uses TOPCon cells; Horay Solar HS620TC-MHC-D 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 Horay Solar HS615TC-MHC-D and Horay Solar HS620TC-MHC-D?
Horay Solar HS615TC-MHC-D has a 30 years power warranty; Horay Solar HS620TC-MHC-D 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 Horay Solar HS615TC-MHC-D and Horay Solar HS620TC-MHC-D bifacial panels?
Both Horay Solar HS615TC-MHC-D and Horay Solar HS620TC-MHC-D 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.
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.