Skip to main content
350 vs 340 15 of 18 identical Swap Change panels

Waaree WS-350 vs Waaree WS-340

WS-350
350 Wp 17.57 %
Open panel page Datasheet PDF
VS
WS-340
340 Wp 17.07 %
Open panel page Datasheet PDF
The verdict

350 leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences
How alike are they
15 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 18 parameters
Parameter 350 340 Difference
Module efficiency 17.57 % 17.07 % 0.50 pp more efficient
Power density 175.8 Wp/m² 170.8 Wp/m² 5.0 Wp/m² higher
Rated power 350 Wp 340 Wp 10 W more power
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 (-0.386 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
350
11,006 kWh
340
10,692 kWh
Lifetime gap
314 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 350 340
Standard test conditions 25 °C 100.0% of rated power 350 W 340 W
Cool, bright day 40 °C 94.2% of rated power 330 W 320 W
Typical summer roof 55 °C 88.4% of rated power 309 W 301 W
Hot roof 70 °C 82.6% of rated power 289 W 281 W
03

Full specification

Parameter 350 340 Difference
Power and efficiency
Rated power 350 Wp 340 Wp +10 W for 350
Module efficiency 17.57 % 17.07 % +0.50 pp for 350
Power density 175.8 Wp/m² 170.8 Wp/m² +5.0 Wp/m² for 350
Open-circuit voltage 47.10 V 46.90 V Effectively the same
Voltage at max power 38.90 V 38.25 V Effectively the same
Short-circuit current 9.45 A 9.35 A Effectively the same
Current at max power 9.00 A 8.90 A Effectively the same
Temperature
Temperature coefficient -0.386 %/°C -0.386 %/°C Same
Mechanical
Dimensions 1985x1003x35 mm 1985x1003x35 mm Same
Module area 1.991 m² 1.991 m² Same
Weight 21.5 kg 21.5 kg Same
Weight per kWp 61.4 kg/kWp 63.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty 10 yrs 10 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.70 %/yr 0.70 %/yr Same
Technology
Cell technology - - Neither datasheet publishes this
Cell type Polycrystalline Polycrystalline Same
Cell count 72 72 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#13,435 vs #13,554
350 leads by 119 places
Power density
#13,416 vs #13,546
350 leads by 130 places
Heat behaviour
#13,565 vs #13,565
Tied - the same position in the database
Weight
#12,739 vs #12,970
350 leads by 231 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#13,359 vs #13,475
350 leads by 116 places
05

More useful comparisons

Open the full database
Same series, other bin
Waaree WS-350 vs Waaree WSM-395
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-350 vs Waaree WSM-390
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-350 vs Waaree WSM-385
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-350 vs Waaree WSM-380
8 differences, the largest is module efficiency
Same series, other bin
Waaree WS-350 vs Waaree WS-345
One difference: module efficiency
Same series, other bin
Waaree WS-350 vs Waaree WS-335
4 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Waaree WS-350 or Waaree WS-340?
According to our database: Waaree WS-350 has higher module efficiency (17.57% vs 17.07%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree WS-350 and Waaree WS-340?
Waaree WS-350 has a module efficiency of 17.57%, while Waaree WS-340 is 17.07%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree WS-350 use vs Waaree WS-340?
Waaree WS-350 uses Polycrystalline cells; Waaree WS-340 uses Polycrystalline. 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 Waaree WS-350 and Waaree WS-340?
Waaree WS-350 has a 25 years power warranty; Waaree WS-340 has a 25 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.

Shop prices: See 25 Waaree 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.