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450 LS-TA2 vs 455 LS-TA2 18 of 19 identical Swap Change panels

IBC Solar Transparent 450 LS-TA2 vs IBC Solar Transparent 455 LS-TA2

IBC Solar
Transparent 450 LS-TA2
450 Wp 22.50 % Back Contact Bifacial
Open panel page Datasheet PDF
VS
IBC Solar
Transparent 455 LS-TA2
455 Wp 22.80 % Back Contact Bifacial
Open panel page Datasheet PDF
The verdict

455 LS-TA2 leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 450 LS-TA2 455 LS-TA2 Difference
Module efficiency 22.50 % 22.80 % 0.30 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
450 LS-TA2
15,098 kWh
455 LS-TA2
15,266 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450 LS-TA2 455 LS-TA2
Standard test conditions 25 °C 100.0% of rated power 450 W 455 W
Cool, bright day 40 °C 95.7% of rated power 430 W 435 W
Typical summer roof 55 °C 91.3% of rated power 411 W 415 W
Hot roof 70 °C 87.0% of rated power 391 W 396 W
03

Full specification

Parameter 450 LS-TA2 455 LS-TA2 Difference
Power and efficiency
Rated power 450 Wp 455 Wp Effectively the same
Module efficiency 22.50 % 22.80 % +0.30 pp for 455 LS-TA2
Power density 225.2 Wp/m² 227.7 Wp/m² Effectively the same
Open-circuit voltage 40.25 V 40.45 V Effectively the same
Voltage at max power 33.91 V 34.11 V Effectively the same
Short-circuit current 14.17 A 14.24 A Effectively the same
Current at max power 13.27 A 13.34 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 24.5 kg 24.5 kg Same
Weight per kWp 54.4 kg/kWp 53.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology Back Contact Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,222 vs #2,714
455 LS-TA2 leads by 1,508 places
Power density
#4,225 vs #2,888
455 LS-TA2 leads by 1,337 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,755 vs #7,897
455 LS-TA2 leads by 858 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,225 vs #5,669
455 LS-TA2 leads by 556 places
05

More useful comparisons

Open the full database
Same series, other bin
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar IBC Module Transparent 455 LS-TA2
2 differences, the largest is module efficiency
Same series, other bin
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar IBC Module Transparent 450 LS-TA2
One difference: cell technology
Same series, other bin
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar IBC Module Transparent 445 LS-TA2
2 differences, the largest is cell technology
Same series, other bin
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar Transparent 445 LS-TA2
One difference: module efficiency
Same manufacturer
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar YH720W-33MHD/MH
14 differences, the largest is temperature coefficient
Same manufacturer
IBC Solar
IBC Solar Transparent 450 LS-TA2 vs IBC Solar YH715W-33MHD/MH
14 differences, the largest is temperature coefficient
06

Written summary

07

Questions about this pairing

Which panel is better: IBC Solar Transparent 450 LS-TA2 or IBC Solar Transparent 455 LS-TA2?
According to our database: IBC Solar Transparent 455 LS-TA2 has higher module efficiency (22.80% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of IBC Solar Transparent 450 LS-TA2 and IBC Solar Transparent 455 LS-TA2?
IBC Solar Transparent 450 LS-TA2 has a module efficiency of 22.50%, while IBC Solar Transparent 455 LS-TA2 is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does IBC Solar Transparent 450 LS-TA2 use vs IBC Solar Transparent 455 LS-TA2?
IBC Solar Transparent 450 LS-TA2 uses Back Contact cells; IBC Solar Transparent 455 LS-TA2 uses Back Contact. 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 IBC Solar Transparent 450 LS-TA2 and IBC Solar Transparent 455 LS-TA2?
IBC Solar Transparent 450 LS-TA2 has a 30 years power warranty; IBC Solar Transparent 455 LS-TA2 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 IBC Solar Transparent 450 LS-TA2 and IBC Solar Transparent 455 LS-TA2 bifacial panels?
Both IBC Solar Transparent 450 LS-TA2 and IBC Solar Transparent 455 LS-TA2 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.

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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.