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Waaree Brand review

WS-120 /12V

120 Wp Polycrystalline
ComparePV verdict

Middle of its segment, heavy for its output

Rank 13,979 of 14,005
Compare panels Datasheet PDF
Power (Wp)
120
Typical for its class
Efficiency (%)
14.11
Weak · bottom 13%
Density (Wp/m²)
141.1
Weak · bottom 16%
Temp (%/°C)
-0.386
Typical · median -0.370
Weight (kg)
13.0
Weak · 1.7 kg above median
Warranty (yrs)
10
Weak · bottom 13%

The Waaree ARUN series (WS-100 to WS-235) are silicon modules designed for stable operation in typical real-world operating conditions - from domestic installations to utility and off-grid applications. A key feature is polycrystalline cell technology, valued where predictable performance and a good quality-to-cost ratio of the entire system are important. In practice, this means easier design of installations with repeatable yields, without overpaying for solutions you don’t use.

A major advantage of the series is the wide range of power options and voltage configurations, enabling the modules to be adapted both to traditional rooftop installations and to battery systems, lighting, monitoring, or recreational facilities. Users gain greater design flexibility - it’s easier to match the number of panels to the inverter or charge controller, minimizing losses from mismatching.

This is an option for investors who expect proven construction and predictable operation, rather than marketing promises.

Ranking

296 panels in the 20-220 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 14.11% 15.88% Weak · bottom 13% 13,914
Power density 141.1 158.7 Weak · bottom 16% 13,895
Temperature coefficient -0.386 -0.370 Typical 13,485
Weight per kWp 108.3 71.2 Weak · bottom 6% 13,950
Performance warranty 10 yrs 25 yrs Weak · bottom 13% 13,806
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential and off-grid.

Not ideal for

Weight-limited structures, owners who want a long output guarantee and tight roof space.

Watch-outs
108.3 kg per kWp

Bottom 6% of the 20-220 W band, against a median of 71.2. Ranked 13,950th in the whole database.

10 year performance warranty

Bottom 13% of the 20-220 W band, against a median of 25 yrs.

14.11% module efficiency

Bottom 13% of the 20-220 W band, against a median of 15.88%.

Notes from the database
  • Efficiency of 14.1% is 7.7pp below the database median (21.8%)
  • 141.1 W/m² power density is 77.0 W/m² below database median (218.1 W/m²) - requires larger installation area
  • -0.39%/°C temperature coefficient - 0.09pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • 13.0 kg weight - 13.5 kg lighter than database median (26.5 kg), reducing installation effort
  • #13914 for efficiency, #13485 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 120 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 14.11 % Weak Segment median 15.88%
Vmpp · Impp 17.56 V · 6.84 A Operating point at max power
Voc · Isc 22.17 V · 7.22 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1260×675×35 mm · 0.85 m² of roof
Weight 13.0 kg Weak Weak · 1.7 kg above median
Coefficient Pmax -0.386 %/°C Typical median -0.370 of its segment
Coefficient Voc · Isc -0.278 · 0.051 %/°C
NOCT 46 °C At 800 W/m², 20 °C ambient
Product warranty 5 years Hardware defects only
Performance warranty 10 years Weak bottom 13% · median 25 yrs

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 -0.370
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Waaree WS-120 /12V 120 W 14.11% -0.386 13.0 kg You are here
MYM2036-170 170 W 17.10% -0.370 11.2 kg +50 W, +3.0 pp, +15 yr warranty
MYP3036-170 170 W 16.69% -0.370 11.3 kg +50 W, +2.6 pp, +15 yr warranty
MYP3036-170 170 W 16.67% -0.370 11.3 kg +50 W, +2.6 pp, +15 yr warranty
MYM2036-165 165 W 16.60% -0.370 11.2 kg +45 W, +2.5 pp, +15 yr warranty
RS6E-160P 160 W 16.20% -0.390 - +40 W, +2.1 pp, +20 yr warranty
MYP3036-165 165 W 16.18% -0.370 11.3 kg +45 W, +2.1 pp, +15 yr warranty
MYP3036-165 165 W 16.18% -0.370 11.3 kg +45 W, +2.1 pp, +15 yr warranty
TPL160P-36 160 W 16.14% -0.360 10.8 kg +40 W, +2.0 pp, +20 yr warranty
MYM2036-160 160 W 16.10% -0.370 11.2 kg +40 W, +2.0 pp, +15 yr warranty
WS-160 /24V 160 W 15.91% -0.386 13.0 kg +40 W, +1.8 pp
WS-115 /12V 115 W 13.52% -0.386 13.0 kg -0.6 pp
WS-125 /12V 125 W 14.70% -0.386 13.0 kg +0.6 pp
WS-130 /12V 130 W 15.29% -0.386 13.0 kg +10 W, +1.2 pp
WS-135 /12V 135 W 15.87% -0.386 13.0 kg +15 W, +1.8 pp
GKA182M180W 180 W 23.00% - 9.0 kg +60 W, +8.9 pp, +20 yr warranty
GKA182M200W 200 W 23.00% - 9.0 kg +80 W, +8.9 pp, +20 yr warranty

Found 11 panels of the same or similar size to this one, within ±10 mm. See them here Found 11 panels of the same or similar size to this one, within ±25 mm. See them here Found 12 panels of the same or similar size to this one, within ±50 mm. See them here Found 22 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What's the difference between the polycrystalline technology used in Waaree ARUN panels and popular monocrystalline modules?
Polycrystalline cells in the ARUN series have slightly lower efficiency than monocrystalline (around 15.6%), but offer more predictable performance and lower cost per Wp. For installations where roof area is less critical than budget - such as residential or utility projects - this is a sensible trade-off. The power temperature coefficient is -0.39%/°C, a typical value for this technology.
What's the maximum power output in the Waaree ARUN series, and how do I choose the right variant for my system?
The series spans WS-100 to WS-235, with the most powerful modules reaching up to 220 Wp. A wide range of power ratings and voltage configurations (36-cell and 72-cell versions) makes it easy to match panel count to a specific inverter or charge controller - whether for a rooftop installation or a smaller battery-based system powering lighting or monitoring equipment.
What warranty applies to Waaree ARUN panels?
The manufacturer provides a 5-year product warranty covering material and workmanship defects, plus a 10-year power performance warranty. This is a standard level of protection for polycrystalline modules in this price segment, sufficient for most residential and utility installations, though shorter than premium series that offer warranties extending to 25-30 years.
Are Waaree ARUN panels suitable for off-grid and battery-based systems?
Yes, this is one of the series' main use cases. Thanks to the availability of lower power variants and different voltage configurations, ARUN modules integrate easily with MPPT or PWM charge controllers in off-grid setups powering lighting, monitoring, pumps, or recreational properties. The flexibility in power selection minimizes losses from mismatching the panel to battery capacity.
Do Waaree ARUN panels perform well in low temperatures and harsh weather conditions?
Yes, the modules are rated for operation between -40°C and 85°C, making them suitable for continental climates with cold winters. The design resists potential-induced degradation (PID), and tempered low-iron glass provides resistance to hail and snow loads. The panels also have confirmed resistance to salt mist and ammonia exposure.
Is Waaree a proven Tier 1 manufacturer, and is it worth buying panels made in India?
Yes, Waaree is classified as a Tier 1 manufacturer, meaning it meets the financial stability, production scale, and bankability criteria required by project financiers. The company is headquartered in India and is one of Asia's largest PV module manufacturers, translating into competitive pricing while maintaining quality standards comparable to Chinese producers.
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