Skip to main content
HS720TC-MHG-D vs HS635TC-MHD-D 7 of 18 identical Swap Change panels

Horay Solar HS720TC-MHG-D vs Horay Solar HS635TC-MHD-D

HS720TC-MHG-D
720 Wp 23.20 % TOPCon Bifacial Incomplete
VS
HS635TC-MHD-D
635 Wp 22.70 % N-type Bifacial
The verdict

HS720TC-MHG-D leads on the differences that matter

The largest is rated power: 85 W more power. 7 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 11 differences
How alike are they
7 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

11 of 18 parameters
Parameter HS720TC-MHG-D HS635TC-MHD-D Difference
Rated power 720 Wp 635 Wp 85 W more power
Module efficiency 23.20 % 22.70 % 0.50 pp more efficient
Weight 38.5 kg 34.5 kg 4.0 kg lighter
Module area 3.106 m² 2.795 m² 0.311 m² apart
Short-circuit current 18.49 A 16.59 A 1.90 A apart
Power density 231.8 Wp/m² 227.2 Wp/m² 4.6 Wp/m² higher
Cell technology TOPCon N-type TOPCon vs N-type
Cell count 132 144 12 cells apart
Current at max power 17.44 A 15.58 A 1.86 A apart
Open-circuit voltage 49.40 V 48.05 V 1.35 V apart
Dimensions 2384x1303x33 mm 2465x1134x30 mm 2384x1303x33 mm vs 2465x1134x30 mm
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.
HS720TC-MHG-D
24,157 kWh
HS635TC-MHD-D
21,306 kWh
Lifetime gap
2,851 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario HS720TC-MHG-D HS635TC-MHD-D
Standard test conditions 25 °C 100.0% of rated power 720 W 635 W
Cool, bright day 40 °C 95.8% of rated power 690 W 608 W
Typical summer roof 55 °C 91.6% of rated power 660 W 582 W
Hot roof 70 °C 87.4% of rated power 629 W 555 W
03

Full specification

Parameter HS720TC-MHG-D HS635TC-MHD-D Difference
Power and efficiency
Rated power 720 Wp 635 Wp +85 W for HS720TC-MHG-D
Module efficiency 23.20 % 22.70 % +0.50 pp for HS720TC-MHG-D
Power density 231.8 Wp/m² 227.2 Wp/m² +4.6 Wp/m² for HS720TC-MHG-D
Open-circuit voltage 49.40 V 48.05 V 1.35 V apart
Voltage at max power 41.30 V 40.76 V Effectively the same
Short-circuit current 18.49 A 16.59 A 1.90 A apart
Current at max power 17.44 A 15.58 A 1.86 A apart
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 2465x1134x30 mm 2384x1303x33 mm vs 2465x1134x30 mm
Module area 3.106 m² 2.795 m² 0.311 m² apart
Weight 38.5 kg 34.5 kg -4.0 kg for HS635TC-MHD-D
Weight per kWp 53.5 kg/kWp 54.3 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - 0.40 %/yr Not published by Horay Solar
Technology
Cell technology TOPCon N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 132 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,306 vs #3,307
HS720TC-MHG-D leads by 2,001 places
Power density
#1,347 vs #3,252
HS720TC-MHG-D leads by 1,905 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#7,424 vs #8,621
HS720TC-MHG-D leads by 1,197 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#350 vs #1,931
HS720TC-MHG-D leads by 1,581 places
05

More useful comparisons

Open the full database
Same series, other bin
Horay Solar HS720TC-MHG-D vs Horay Solar HS710TC-MHG-D
3 differences, the largest is module efficiency
Same series, other bin
Horay Solar HS720TC-MHG-D vs Horay Solar HS700TC-MHG-D
3 differences, the largest is module efficiency
Same series, other bin
Horay Solar HS720TC-MHG-D vs Horay Solar HS690TC-MHG-D
6 differences, the largest is module efficiency
Same series, other bin
Horay Solar HS720TC-MHG-D vs Horay Solar HS680TC-MHG-D
6 differences, the largest is module efficiency
Same series, other bin
Horay Solar HS635TC-MHD-D vs Horay Solar HS650TC-MHD-D
3 differences, the largest is module efficiency
Same series, other bin
Horay Solar HS635TC-MHD-D vs Horay Solar HS645TC-MHD-D
3 differences, the largest is module efficiency
06

Written summary

Checking cache...
07

Questions about this pairing

Which panel is better: Horay Solar HS720TC-MHG-D or Horay Solar HS635TC-MHD-D?
According to our database: Horay Solar HS720TC-MHG-D has higher module efficiency (23.20% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Horay Solar HS720TC-MHG-D and Horay Solar HS635TC-MHD-D?
Horay Solar HS720TC-MHG-D has a module efficiency of 23.20%, while Horay Solar HS635TC-MHD-D is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Horay Solar HS720TC-MHG-D use vs Horay Solar HS635TC-MHD-D?
Horay Solar HS720TC-MHG-D uses TOPCon cells; Horay Solar HS635TC-MHD-D 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 Horay Solar HS720TC-MHG-D and Horay Solar HS635TC-MHD-D?
Horay Solar HS720TC-MHG-D has a 30 years power warranty; Horay Solar HS635TC-MHD-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 HS720TC-MHG-D and Horay Solar HS635TC-MHD-D bifacial panels?
Both Horay Solar HS720TC-MHG-D and Horay Solar HS635TC-MHD-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.