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WINAICO Brand review

WST-415MGX-E1

415 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 11,114 of 14,129
Compare panels Datasheet PDF
Power (Wp)
415
Typical for its class
Efficiency (%)
21.30
Typical · median 21.48%
Density (Wp/m²)
212.5
Typical · median 214.7
Temp (%/°C)
-0.350
Weak · bottom 22%
Weight (kg)
21.6
Typical · median 23.0 kg
Warranty (yrs)
25
Weak · bottom 18%

The WST-MGX-E1 GEMINI series from WINAICO is built for commercial and industrial installations, where long-term yield predictability matters most. At its core are half-cut monocrystalline cells arranged across six independent strings, which limits power losses under partial shading and reduces the risk of hot spots - a common issue on large rooftop and ground-mount arrays. The module stands out for its high mechanical strength, verified through load testing up to 5400 Pa, making it well suited to sites exposed to strong wind and heavy snow loads. Investors also gain peace of mind thanks to a 25-year linear performance guarantee with degradation capped at 0.53% per year, translating into a lower LCOE over the system's full life cycle. The black anodized frame and an IP68 junction box with three bypass diodes add durability and operational safety under demanding weather conditions. This is a solution for designers and investors seeking a predictable, resilient option with low operating costs for photovoltaic installations on commercial and industrial rooftops over many years of service.

Ranking

6,941 panels in the 315-515 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 21.48% Typical 8,585
Power density 212.5 214.7 Typical 8,858
Temperature coefficient -0.350 -0.300 Weak · bottom 22% 10,489
Weight per kWp 52.0 53.1 Typical 5,529
Performance warranty 25 yrs 30 yrs Weak · bottom 18% 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

Commercial, shaded-installations and cold-climate.

Not ideal for

Owners who want a long output guarantee and hot climates.

Watch-outs
25 year performance warranty

Bottom 18% of the 315-515 W band, against a median of 30 yrs.

-0.350 %/°C temperature coefficient

Bottom 22% of the 315-515 W band, against a median of -0.300.

Notes from the database
  • At 21.3% efficiency, this panel is 0.5pp below the database median of 21.8%
  • At 212.5 W/m², this panel generates 5.6 W/m² less per unit area than database median (218.1 W/m²)
  • Temperature coefficient of -0.35%/°C is 0.05pp worse than database median (-0.30%/°C) - higher losses in summer heat
  • 21.6 kg weight - 4.9 kg lighter than database median (26.5 kg), reducing installation effort
  • Ranked #8585 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 415 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Typical Segment median 21.48%
Vmpp · Impp 31.60 V · 13.13 A Operating point at max power
Voc · Isc 37.60 V · 13.99 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 21.6 kg Typical Typical · median 23.0 kg
Cells 108 Monocrystalline
Coefficient Pmax -0.350 %/°C Weak bottom 22% of its segment
Coefficient Voc · Isc -0.270 · 0.045 %/°C
NOCT 41 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 18% · median 30 yrs
End-of-warranty output 85.3 % Equals 343 W guaranteed
Degradation 2.00 → 0.53 % 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 415 Wp appear here. The rest cover the whole series.

Winaico Performance Guarantee Winaico Performance Guarantee 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
-

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

Heat losses
-0.350 %/°C against a segment median of -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
WINAICO WST-415MGX-E1 415 W 21.30% -0.350 21.6 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +50 W, +2.5 pp, +5 yr warranty
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +50 W, cooler, +2.5 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg Cooler, +2.3 pp, +5 yr warranty
LX-465M/182R188-108+ GG 465 W 23.60% -0.290 24.5 kg +50 W, cooler, +2.3 pp
JST-EDMH-(445-465)W-TD (460W class) 460 W 23.56% -0.300 20.5 kg Cooler, +2.3 pp, +5 yr warranty
LX-460M/182R-96+ GG 460 W 23.55% -0.260 23.5 kg Cooler, +2.2 pp, +5 yr warranty
PS-MNB108(HCBF)-460W 460 W 23.53% -0.290 20.5 kg Cooler, +2.2 pp, +5 yr warranty
JAT54S40-460/LR 460 W 23.50% -0.260 19.3 kg Cooler, +2.2 pp, +5 yr warranty
WST-400MGX-P3 Full Black 400 W 20.44% -0.350 21.5 kg -15 W, -0.9 pp
WST-405MGX-E5 405 W 20.80% -0.320 21.7 kg -10 W, cooler, -0.5 pp
WST-410MGX-P3 410 W 20.95% -0.350 21.5 kg -0.4 pp
WST-410MGX-E3 410 W 21.00% -0.340 21.6 kg -0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +95 W, cooler, +3.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +80 W, cooler, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +90 W, cooler, +3.4 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +90 W, cooler, +3.4 pp

Found 1797 panels of the same or similar size to this one, within ±10 mm. See them here Found 1928 panels of the same or similar size to this one, within ±25 mm. See them here Found 3413 panels of the same or similar size to this one, within ±50 mm. See them here Found 4007 panels of the same or similar size to this one, within ±100 mm. See them here

About the WST-MGX-E1 GEMINI Series series

6 answered

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

What is the actual power output and efficiency of WINAICO WST-MGX-E1 GEMINI panels?
The GEMINI series reaches a maximum power output of up to 415 Wp. Thanks to monocrystalline half-cut cells arranged across six independent strings, the panels maintain high efficiency even under partial shading, resulting in more stable energy yield throughout the day compared to modules with conventional full-cell architecture.
Are WINAICO GEMINI WST-MGX-E1 panels suitable for large commercial rooftop installations?
Yes, the GEMINI series was specifically designed for commercial and industrial installations. Mechanical durability verified through load testing up to 5400 Pa makes these panels suitable for large flat roofs on warehouses and industrial halls, even in locations exposed to strong wind or heavy snow loads.
What warranty comes with WINAICO WST-MGX-E1 GEMINI panels and what does it cover?
The manufacturer provides a 15-year product warranty along with a 25-year linear power warranty, with annual degradation not exceeding 0.53%. In practice, this means the panel should retain a substantial share of its original power output after 25 years of operation, resulting in a lower LCOE over the full lifecycle of the installation.
Does the half-cut technology in GEMINI panels actually reduce the risk of hot spots?
Yes. Splitting cells into smaller halves and distributing them across six independent strings limits the impact of partial shading on the whole module. When one section of the panel is shaded, power losses are confined to the corresponding string rather than the entire panel, which significantly reduces the risk of cell overheating and hot-spot formation.
Are WINAICO panels durable and safe under harsh weather conditions, such as heavy snowfall?
The WST-MGX-E1 GEMINI construction, featuring a black anodized frame and an IP68 junction box with three bypass diodes, is tested for loads up to 5400 Pa, equivalent to heavy snow and strong wind conditions. This mechanical durability makes the modules well-suited for harsher climates without increased failure risk.
Is WINAICO a reliable and financially stable manufacturer of GEMINI series panels?
WINAICO is a Taiwan-based manufacturer classified as Tier 1, reflecting high financial and technological credibility confirmed by independent industry rankings. The WST-MGX-E1 GEMINI series is currently in active production, so investors can count on module availability and genuine warranty support throughout the long operational lifetime of the installation.
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