430W vs 420W 16 of 19 identical Swap Change panels

Lexron 430W vs Lexron 420W

Q: Which panel is better: Lexron 430W or Lexron 420W?

According to our database: Lexron 430W has higher module efficiency (21.62% vs 21.12%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Lexron 430W and Lexron 420W?

Lexron 430W has a module efficiency of 21.62%, while Lexron 420W is 21.12%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Lexron 430W use vs Lexron 420W?

Lexron 430W uses PERC cells; Lexron 420W uses PERC. 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 Lexron 430W and Lexron 420W?

Lexron 430W has a 30 years power warranty; Lexron 420W 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.

Lexron

430W

430 Wp 21.62 % PERC

Open panel page Datasheet PDF

Lexron

420W

420 Wp 21.12 % PERC

Open panel page Datasheet PDF

The verdict

430W leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences

How alike are they

16 of 19 comparable
parameters are identical

identical differs

What actually differs

3 of 19 parameters

Parameter 430W 420W Difference

Module efficiency 21.62 % 21.12 % 0.50 pp more efficient

Power density 216.2 Wp/m² 211.2 Wp/m² 5.0 Wp/m² higher

Rated power 430 Wp 420 Wp 10 W more power

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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

430W

14,160 kWh

420W

13,831 kWh

Lifetime gap

329 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 430W 420W

Standard test conditions 25 °C 100.0% of rated power 430 W 420 W

Cool, bright day 40 °C 94.8% of rated power 407 W 398 W

Typical summer roof 55 °C 89.5% of rated power 385 W 376 W

Hot roof 70 °C 84.2% of rated power 362 W 354 W

Full specification

Parameter 430W 420W Difference

Power and efficiency

Rated power 430 Wp 420 Wp +10 W for 430W

Module efficiency 21.62 % 21.12 % +0.50 pp for 430W

Power density 216.2 Wp/m² 211.2 Wp/m² +5.0 Wp/m² for 430W

Open-circuit voltage 50.54 V 50.20 V Effectively the same

Voltage at max power 42.12 V 41.83 V Effectively the same

Short-circuit current 10.77 A 10.59 A Effectively the same

Current at max power 10.21 A 10.04 A Effectively the same

Temperature

Temperature coefficient -0.350 %/°C -0.350 %/°C Same

Mechanical

Dimensions 1987x1001x35 mm 1987x1001x35 mm Same

Module area 1.989 m² 1.989 m² Same

Weight 22.0 kg 22.0 kg Same

Weight per kWp 51.2 kg/kWp 52.4 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.45 %/yr 0.45 %/yr Same

Technology

Cell technology PERC PERC Same

Cell type Monocrystalline Monocrystalline Same

Cell count 72 72 Same

Bifacial No No Same

Against the whole database

14,005 panels

Efficiency

#7,646 vs #9,255

430W leads by 1,609 places

Power density

#7,620 vs #9,255

430W leads by 1,635 places

Heat behaviour

#10,419 vs #10,419

Tied - the same position in the database

Weight

#4,522 vs #5,859

430W leads by 1,337 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#10,296 vs #10,850

430W leads by 554 places

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Written summary

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Questions about this pairing

Which panel is better: Lexron 430W or Lexron 420W?

According to our database: Lexron 430 W has higher module efficiency (21.62% vs 21.12%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Lexron 430W and Lexron 420W?

Lexron 430 W has a module efficiency of 21.62%, while Lexron 420 W is 21.12%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Lexron 430W use vs Lexron 420W?

Lexron 430 W uses PERC cells; Lexron 420 W uses PERC. 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 Lexron 430W and Lexron 420W?

Lexron 430 W has a 30 years power warranty; Lexron 420 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.

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.