Tongwei TWMNF-66HD745 vs Tongwei TWMNH-48HW470
VS
The verdict
TWMNF-66HD745 leads on the differences that matter
The largest is rated power: 275 W more power. 5 of 19 comparable parameters are identical.
See all 14 differencesHow alike are they
5
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
14 of 19 parameters
What actually differs
Parameter
TWMNF-66HD745
TWMNH-48HW470
Difference
Rated power
745 Wp
470 Wp
275 W more power
Module efficiency
24.00 %
23.50 %
0.50 pp more efficient
Weight
37.3 kg
23.7 kg
13.6 kg lighter
Product warranty
12 yrs
15 yrs
3 yrs longer
Open-circuit voltage
49.95 V
36.55 V
13.40 V apart
Short-circuit current
18.87 A
15.95 A
2.92 A apart
Module area
3.106 m²
1.998 m²
1.108 m² apart
Power density
239.8 Wp/m²
235.2 Wp/m²
4.6 Wp/m² higher
Cell technology
TOPCon
N-type
TOPCon vs N-type
Voltage at max power
41.86 V
30.80 V
11.06 V apart
Current at max power
17.80 A
15.26 A
2.54 A apart
Cell count
132
96
36 cells apart
Bifacial
Yes
No
Yes vs No
Dimensions
2384x1303x33 mm
1762x1134x30 mm
2384x1303x33 mm vs 1762x1134x30 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 (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
TWMNF-66HD745
24,996 kWh
TWMNH-48HW470
15,769 kWh
Lifetime gap
9,227 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TWMNF-66HD745
TWMNH-48HW470
Standard test conditions
25 °C
100.0% of rated power
745 W
470 W
Cool, bright day
40 °C
95.8% of rated power
714 W
450 W
Typical summer roof
55 °C
91.6% of rated power
682 W
431 W
Hot roof
70 °C
87.4% of rated power
651 W
411 W
03
Full specification
Parameter
TWMNF-66HD745
TWMNH-48HW470
Difference
Power and efficiency
Rated power
745 Wp
470 Wp
+275 W for TWMNF-66HD745
Module efficiency
24.00 %
23.50 %
+0.50 pp for TWMNF-66HD745
Power density
239.8 Wp/m²
235.2 Wp/m²
+4.6 Wp/m² for TWMNF-66HD745
Open-circuit voltage
49.95 V
36.55 V
13.40 V apart
Voltage at max power
41.86 V
30.80 V
11.06 V apart
Short-circuit current
18.87 A
15.95 A
2.92 A apart
Current at max power
17.80 A
15.26 A
2.54 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2384x1303x33 mm
1762x1134x30 mm
2384x1303x33 mm vs 1762x1134x30 mm
Module area
3.106 m²
1.998 m²
1.108 m² apart
Weight
37.3 kg
23.7 kg
-13.6 kg for TWMNH-48HW470
Weight per kWp
50.1 kg/kWp
50.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
15 yrs
+3 yrs for TWMNH-48HW470
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
N-type
TOPCon vs N-type
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
96
36 cells apart
Bifacial
Yes
No
Yes vs No
04
14,005 panels
Against the whole database
Efficiency
#303
vs
#716
TWMNF-66HD745 leads by 413 places
Power density
#339
vs
#674
TWMNF-66HD745 leads by 335 places
Heat behaviour
#1,309
vs
#1,309
Tied - the same position in the database
Weight
#3,586
vs
#3,804
TWMNF-66HD745 leads by 218 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#148
vs
#6,415
TWMNF-66HD745 leads by 6,267 places
05
Open the full database
More useful comparisons
Same series, other bin
Tongwei TWMNF-66HD745 vs Tongwei TWMNF-66HD750
The same specification on paper
Same series, other bin
Tongwei TWMNF-66HD745 vs Tongwei TWMNF-66HD740
One difference: module efficiency
Same series, other bin
Tongwei TWMNF-66HD745 vs Tongwei TWMNF-66HD735
3 differences, the largest is module efficiency
Same series, other bin
Tongwei TWMNF-66HD745 vs Tongwei TWMNF-66HD730
3 differences, the largest is module efficiency
Same series, other bin
Tongwei TWMNH-48HW470 vs Tongwei TWMNH-48HW475
One difference: module efficiency
Same series, other bin
Tongwei TWMNH-48HW470 vs Tongwei TWMNH-48HW465
One difference: module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Tongwei TWMNF-66HD745 or Tongwei TWMNH-48HW470?
According to our database: Tongwei TWMNF-66HD745 has higher module efficiency (24.00% vs 23.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tongwei TWMNF-66HD745 and Tongwei TWMNH-48HW470?
Tongwei TWMNF-66HD745 has a module efficiency of 24.00%, while Tongwei TWMNH-48HW470 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMNF-66HD745 use vs Tongwei TWMNH-48HW470?
Tongwei TWMNF-66HD745 uses TOPCon cells; Tongwei TWMNH-48HW470 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 Tongwei TWMNF-66HD745 and Tongwei TWMNH-48HW470?
Tongwei TWMNF-66HD745 has a 30 years power warranty; Tongwei TWMNH-48HW470 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 Tongwei TWMNF-66HD745 and Tongwei TWMNH-48HW470 bifacial panels?
Tongwei TWMNF-66HD745 is bifacial (captures light from both faces); Tongwei TWMNH-48HW470 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 72 Tongwei 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.