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WINAICO Brand review

WST-495NGX60-AB

495 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 6,499 of 14,269
Compare panels Datasheet PDF
Power (Wp)
495
Strong · top 4%
Efficiency (%)
22.90
Typical · median 22.52%
Density (Wp/m²)
228.8
Typical · median 225.2
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
27.8
Weak · 3.8 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The WINAICO WST-NGX60-AB series consists of dual-glass N-type modules built on TOPCon technology, engineered for commercial and residential installations where maximizing energy yield per square meter of roof matters most. The use of bifacial cells lets the panel capture light reflected off the surrounding surface, meaningfully boosting energy production without adding to the installation's footprint, which is especially valuable on sites with light-colored roofing or ground-mounted arrays. The glass-glass construction, with two layers of 2.0 mm tempered glass replacing the traditional backsheet, significantly improves resistance to moisture ingress, microcracking, and PID degradation, extending module lifespan in demanding operating conditions. As a result, the manufacturer backs the series with one of the longer linear performance warranties on the market, spanning three decades of operation with minimal annual power loss. The series fits equally well on commercial rooftops and industrial buildings as it does in residential PV systems, where investors are focused on keeping LCOE low across the full lifecycle of the installation. A sturdy, anodized aluminum frame along with certified resistance to salt mist and ammonia corrosion make these panels a solid choice for agricultural and coastal sites, where standard modules tend to lose performance faster.

Ranking

1,105 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.90% 22.52% Typical 2,466
Power density 228.8 225.2 Typical 2,552
Temperature coefficient -0.300 -0.290 Weak · bottom 20% 6,240
Weight per kWp 56.2 52.2 Weak · bottom 8% 10,609
Performance warranty 30 yrs 30 yrs Typical 31
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 4 caution
Not ideal for

Weight-limited structures and hot climates.

Watch-outs
56.2 kg per kWp

Bottom 8% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 10,609th in the whole database.

-0.300 %/°C temperature coefficient

Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290.

What owners get
High N-type TOPCon efficiency

Efficiency of 22.9-23.1% outperforms comparable 500 Wp modules such as Silfab SIL HM (21%) and Selfa SV120M.2.4 (22.6%), delivering higher energy yield per rooftop area.

Glass-glass construction with bifacial cells

Two layers of 2.0 mm tempered glass replace the traditional backsheet, significantly reducing PID degradation and microcrack risk, while bifaciality captures reflected light for extra yield, especially on light-colored roofs and ground-mount structures.

30-year linear power warranty

A 30-year performance warranty is among the longest in the segment, directly supporting lower LCOE across the installation's full lifecycle.

Tier-1 manufacturer with 20+ years of history

Founded in 2003 in Taiwan, WINAICO holds bankable Tier-1 status, reducing financial risk for bank or leasing-financed projects.

Salt mist and ammonia corrosion resistance

Certified frame corrosion resistance makes the series well-suited for agricultural and coastal installations, where standard modules degrade faster.

Trade-offs
Efficiency trails segment leader

At 22.9-23.1%, efficiency is notably lower than the Gokin GK-3-54HGF (24.5%) at the same 500 Wp power class, meaning potentially lower energy yield per square meter versus newer competing modules.

15-year product warranty shorter than market trend

The 15-year product warranty lags behind the 25-year standard increasingly offered by Tier-1 manufacturers on new-generation TOPCon modules, even though the power warranty reaches 30 years.

Notes from the database
  • At 22.9% efficiency, this panel is on par with typical TOPCon 450-500W modules
  • Power density of 228.8 W/m² packs 3.6 W/m² more into the same footprint vs TOPCon 450-500W median (225.2 W/m²)
  • Temperature coefficient of -0.30%/°C matches the TOPCon 450-500W median
  • Weight of 27.8 kg is 3.8 kg above TOPCon 450-500W median (24.0 kg) - verify structural support
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 495 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.90 % Typical Segment median 22.52%
Vmpp · Impp 37.25 V · 13.29 A Operating point at max power
Voc · Isc 44.70 V · 14.12 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1908×1134×35 mm · 2.16 m² of roof
Weight 27.8 kg Weak Weak · 3.8 kg above median
Cells 120 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 20% of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 433 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by WINAICO in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 495 Wp appear here. The rest cover the whole series.

WINAICO Linear Power Warranty WINAICO Linear Power Warranty Whole series

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
-
With bifacial gain
-

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

Heat losses
-0.300 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
WINAICO WST-495NGX60-AB 495 W 22.90% -0.300 27.8 kg You are here
JKM510T-48HL6M-DB 510 W 25.52% -0.240 22.0 kg Cooler, lighter, +2.6 pp
JKM505T-48HL6M-DB 505 W 25.27% -0.240 22.0 kg Cooler, lighter, +2.4 pp
JKM500T-48HL6M-DB 500 W 25.02% -0.240 22.0 kg Cooler, lighter, +2.1 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +2.1 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +1.9 pp
JKM495T-48HL6M-DB 495 W 24.77% -0.240 22.0 kg Cooler, lighter, +1.9 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +1.8 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, lighter, +1.8 pp
SPR-BE54-HD505 505 W 24.70% -0.260 26.0 kg Cooler, +1.8 pp, +10 yr warranty
WST-490NGX60-AA 490 W 22.70% -0.310 28.0 kg Hotter
WST-500NGX60-AW 500 W 23.10% -0.310 28.0 kg Hotter, +0.2 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +65 W, cooler, +1.9 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +60 W, cooler, +1.7 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +55 W, lighter, +1.5 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +45 W, lighter, +1.5 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +45 W, lighter, +1.5 pp

Found 766 panels of the same or similar size to this one, within ±10 mm. See them here Found 775 panels of the same or similar size to this one, within ±25 mm. See them here Found 926 panels of the same or similar size to this one, within ±50 mm. See them here Found 1510 panels of the same or similar size to this one, within ±100 mm. See them here

About the WST-NGX60-AB series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is TOPCon technology in WINAICO WST-NGX60-AB panels and does it offer a real advantage over classic PERC?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces electron recombination at the cell surface through an additional passivation layer. In practice, this results in higher module efficiency and lower power degradation over time compared to older P-type PERC cells. For the WST-NGX60-AB series, this means higher energy yield from the same roof area and more stable performance at high temperatures.
Does it make sense to install bifacial WST-NGX60-AB panels on a sloped residential roof?
Bifacial cells deliver the most benefit when light can reflect off the surface beneath the panel, such as on ground-mounted systems, flat roofs with light-colored coverings, or freestanding structures. On a typical sloped roof, where the panel sits close to the surface, the extra gain from the rear side will be minimal, but the module still performs normally and does not lose efficiency compared to the monofacial version.
What warranty comes with WINAICO WST-NGX60-AB panels and what does it cover?
The manufacturer offers a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty guaranteeing a minimum output level throughout that period. This is one of the longest warranties on the market, which matters when calculating return on investment over a three-decade system lifespan.
How does glass-glass construction differ from a standard backsheet panel, and is it worth the extra cost?
In the glass-glass version, the rear backsheet is replaced with a second layer of 2.0 mm tempered glass, increasing resistance to moisture, micro-cracks, and PID degradation. This design is heavier but more durable in harsh conditions - on industrial roofs, agricultural buildings, or coastal sites where moisture and temperature swings degrade standard modules faster. The premium pays off through longer lifespan and a stronger linear power warranty.
What is the maximum power output of the WST-NGX60-AB panel and what installations is it suited for?
The series reaches a maximum power of up to 500 Wp, which combined with TOPCon technology and bifacial cells delivers a high energy yield per square meter. This makes the modules well suited for large commercial installations on industrial buildings as well as residential PV systems, where limited roof area and low lifecycle LCOE are key priorities.
Are WINAICO panels suitable for coastal installations or agricultural buildings?
Yes, the panel frame is anodized aluminum and the module has certified resistance to salt mist and ammonia corrosion. As a result, WST-NGX60-AB panels retain performance longer than standard modules in coastal environments, where salty air accelerates corrosion, and in agricultural buildings, where ammonia from livestock production can damage typical components.
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