450W vs 445W 18 of 19 identical Swap Change panels

Leapton LP182182-M-54-NB-450W vs Leapton LP182182-M-54-NB-445W

Q: Which panel is better: Leapton LP182*182-M-54-NB-450W or Leapton LP182*182-M-54-NB-445W?

According to our database: Leapton LP182*182-M-54-NB-450W has higher module efficiency (22.52% vs 22.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450W has a module efficiency of 22.52%, while Leapton LP182*182-M-54-NB-445W is 22.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Leapton LP182*182-M-54-NB-450W use vs Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450W uses TOPCon cells; Leapton LP182*182-M-54-NB-445W uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450W has a 30 years power warranty; Leapton LP182*182-M-54-NB-445W 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.

Q: Are Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W bifacial panels?

Both Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W 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.

Leapton

LP182*182-M-54-NB-450W

450 Wp 22.52 % TOPCon Bifacial

Open panel page Datasheet PDF

Leapton

LP182*182-M-54-NB-445W

445 Wp 22.27 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

450W leads on the differences that matter

The largest is module efficiency: 0.25 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

What actually differs

1 of 19 parameters

Parameter 450W 445W Difference

Module efficiency 22.52 % 22.27 % 0.25 pp more efficient

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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.

450W

15,098 kWh

445W

14,931 kWh

Lifetime gap

167 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 450W 445W

Standard test conditions 25 °C 100.0% of rated power 450 W 445 W

Cool, bright day 40 °C 95.5% of rated power 430 W 425 W

Typical summer roof 55 °C 91.0% of rated power 410 W 405 W

Hot roof 70 °C 86.5% of rated power 389 W 385 W

Full specification

Parameter 450W 445W Difference

Power and efficiency

Rated power 450 Wp 445 Wp Effectively the same

Module efficiency 22.52 % 22.27 % +0.25 pp for 450W

Power density 225.2 Wp/m² 222.7 Wp/m² Effectively the same

Open-circuit voltage 39.68 V 39.53 V Effectively the same

Voltage at max power 32.87 V 32.72 V Effectively the same

Short-circuit current 14.15 A 14.07 A Effectively the same

Current at max power 13.69 A 13.60 A Effectively the same

Temperature

Temperature coefficient -0.300 %/°C -0.300 %/°C Same

Mechanical

Dimensions 1762x1134x30 mm 1762x1134x30 mm Same

Module area 1.998 m² 1.998 m² Same

Weight 25.0 kg 25.0 kg Same

Weight per kWp 55.6 kg/kWp 56.2 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 TOPCon TOPCon Same

Cell type Monocrystalline Monocrystalline Same

Cell count 108 108 Same

Bifacial Yes Yes Same

Against the whole database

14,129 panels

Efficiency

#4,167 vs #5,544

450W leads by 1,377 places

Power density

#4,284 vs #5,365

450W leads by 1,081 places

Heat behaviour

#6,152 vs #6,152

Tied - the same position in the database

Weight

#9,992 vs #10,542

450W leads by 550 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#6,283 vs #6,817

450W leads by 534 places

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Written summary

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Questions about this pairing

Which panel is better: Leapton LP182*182-M-54-NB-450W or Leapton LP182*182-M-54-NB-445W?

According to our database: Leapton LP182*182-M-54-NB-450 W has higher module efficiency (22.52% vs 22.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450 W has a module efficiency of 22.52%, while Leapton LP182*182-M-54-NB-445 W is 22.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Leapton LP182*182-M-54-NB-450W use vs Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450 W uses TOPCon cells; Leapton LP182*182-M-54-NB-445 W 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 Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W?

Leapton LP182*182-M-54-NB-450 W has a 30 years power warranty; Leapton LP182*182-M-54-NB-445 W 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 Leapton LP182*182-M-54-NB-450W and Leapton LP182*182-M-54-NB-445W bifacial panels?

Both Leapton LP182*182-M-54-NB-450 W and Leapton LP182*182-M-54-NB-445 W 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 9 Leapton 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.