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Waaree Brand review

WS-350

350 Wp Polycrystalline
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,254 of 14,005
Compare panels Datasheet PDF
Power (Wp)
350
Weak · bottom 16%
Efficiency (%)
17.57
Weak · bottom 9%
Density (Wp/m²)
175.8
Weak · bottom 10%
Temp (%/°C)
-0.386
Weak · bottom 6%
Weight (kg)
21.5
Weak · bottom 19%
Warranty (yrs)
25
Weak · bottom 23%

The Waaree EDO PRO SERIES is designed for installations where predictable module performance over years and stable yields in variable weather conditions are crucial. Panels feature glass with an antireflection coating, which enhances light transmission and helps maintain production even with diffuse radiation. In practice, this means less fluctuation in yields on cloudy days and better utilization of morning and afternoon sunlight.

A key advantage of the series is PID resistance and the use of durable, UV-resistant encapsulation, which minimizes the risk of power degradation over the long term and increases investment security. Additionally, the modules are current-matched, making it easier to build strings with balanced parameters and reduce losses due to mismatching.

EDO PRO SERIES is suitable for rooftop and ground installations for homes, businesses, and PV farms - especially where resilience to harsh conditions is important, such as salt mist, dust, or hail.

Ranking

4,542 panels in the 250-450 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 17.57% 20.74% Weak · bottom 9% 13,329
Power density 175.8 207.4 Weak · bottom 10% 13,310
Temperature coefficient -0.386 -0.340 Weak · bottom 6% 13,485
Weight per kWp 61.4 54.4 Weak · bottom 19% 12,643
Performance warranty 25 yrs 30 yrs Weak · bottom 23% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.386 %/°C temperature coefficient

Bottom 6% of the 250-450 W band, against a median of -0.340. Ranked 13,485th in the whole database.

17.57% module efficiency

Bottom 9% of the 250-450 W band, against a median of 20.74%. Ranked 13,329th in the whole database.

175.8 watts per square metre

Bottom 10% of the 250-450 W band, against a median of 207.4. Ranked 13,310th in the whole database.

Notes from the database
  • Efficiency of 17.6% is 4.3pp below the database median (21.8%)
  • 175.8 W/m² power density is 42.3 W/m² below database median (218.1 W/m²) - requires larger installation area
  • Temperature coefficient of -0.39%/°C is 0.09pp worse than database median (-0.30%/°C) - higher losses in summer heat
  • At 21.5 kg, this panel is 5.0 kg lighter than database median (26.5 kg) - easier handling during installation
  • #13329 for efficiency, #13485 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 350 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.57 % Weak Segment median 20.74%
Vmpp · Impp 38.90 V · 9.00 A Operating point at max power
Voc · Isc 47.10 V · 9.45 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1985×1003×35 mm · 1.99 m² of roof
Weight 21.5 kg Weak Weak · bottom 19%
Cells 72 Polycrystalline
Coefficient Pmax -0.386 %/°C Weak bottom 6% of its segment
Coefficient Voc · Isc -0.278 · 0.051 %/°C
NOCT 46 °C At 800 W/m², 20 °C ambient
Product warranty 10 years Hardware defects only
Performance warranty 25 years Weak bottom 23% · median 30 yrs
End-of-warranty output 80.7 % Equals 270 W guaranteed
Degradation 2.50 → 0.70 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.386 %/°C against a segment median of -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Waaree WS-350 350 W 17.57% -0.386 21.5 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg -10 W, cooler, +2.5 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg Cooler, lighter, +2.3 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg Cooler, +2.3 pp, +5 yr warranty
CS3U-395P 395 W 19.90% -0.360 22.5 kg +45 W, cooler, +2.3 pp
LNSU-400M 400 W 19.81% -0.360 24.5 kg +50 W, heavier, +2.2 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg -15 W, cooler, +2.2 pp
LNSF-400M 400 W 19.76% -0.360 23.5 kg +50 W, cooler, +2.2 pp
CS3L-365P 365 W 19.70% -0.360 21.1 kg +15 W, cooler, +2.1 pp
WS-320 320 W 16.06% -0.386 21.5 kg -30 W, -1.5 pp
WS-325 325 W 16.32% -0.386 21.5 kg -25 W, -1.2 pp
WS-330 330 W 16.57% -0.386 21.5 kg -20 W, -1.0 pp
WS-335 335 W 16.82% -0.386 21.5 kg -15 W, -0.8 pp
WS-340 340 W 17.07% -0.386 21.5 kg -10 W, -0.5 pp
WS-345 345 W 17.32% -0.386 21.5 kg -0.2 pp
WSM-380 380 W 19.08% -0.370 21.5 kg +30 W, cooler, +1.5 pp
WSM-385 385 W 19.33% -0.370 21.5 kg +35 W, cooler, +1.8 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +125 W, +6.4 pp, +15 yr warranty

Found 110 panels of the same or similar size to this one, within ±10 mm. See them here Found 262 panels of the same or similar size to this one, within ±25 mm. See them here Found 443 panels of the same or similar size to this one, within ±50 mm. See them here Found 548 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Waaree EDO PRO SERIES 395W panel still available for purchase?
No, the EDO PRO SERIES has been discontinued from Waaree's current production lineup and replaced by newer, higher-power models. Availability is now limited to remaining warehouse stock from distributors holding final production batches. It's worth checking current stock levels and manufacturing date with the seller, since limited ongoing supply can make it harder to source matching modules for future system expansion.
What warranty comes with Waaree EDO PRO SERIES panels?
The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year power performance warranty. This means the panel should still deliver a significant share of its rated output after a quarter century of operation. This is standard for Tier 1 manufacturers and gives investors predictable returns over the system's long-term lifecycle.
What is PID resistance in EDO PRO SERIES panels and why does it matter?
PID (Potential Induced Degradation) is power loss caused by voltage differences between the cells and the frame, worsening in hot, humid climates. EDO PRO SERIES panels are tested for PID resistance and use durable, UV-resistant encapsulation, reducing the risk of sudden output drops after several years of operation. For investors, this means lower risk of unexpected efficiency loss over the system's lifetime.
What does current-matching in EDO PRO SERIES mean and how does it affect system output?
Current matching means sorting panels with similar current values before wiring them into a string. This keeps cells operating under comparable electrical conditions, reducing mismatch losses caused by differences between modules. In practice, this results in higher real-world string yield compared to randomly selected panels, especially in larger utility-scale PV farm installations.
Is Waaree a Tier 1 manufacturer, and what does that mean for buyers of EDO PRO SERIES?
Yes, Waaree Energies is an Indian manufacturer classified as Tier 1 by Bloomberg NEF, confirming financial stability, production capacity, and creditworthiness for lenders financing PV projects. For buyers, this means easier access to project financing, lower risk of the manufacturer going out of business during the warranty period, and greater confidence in the quality control behind EDO PRO SERIES modules.
Are EDO PRO SERIES panels suitable for harsh environments, such as coastal installations?
Yes, the series was designed for resilience against challenging conditions like salt mist, dust, and hail, thanks to durable antireflective-coated glass and resistant encapsulation. This makes the 395W panels suitable for both rooftop and ground-mount installations in coastal or dusty regions, though for very aggressive environments it's worth also verifying the frame's corrosion resistance rating.
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