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ZNShine ZXM7-UHLDD108-420
ZNShine Brand review

ZXM7-UHLDD108-420

420 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 10,637 of 14,005
Compare panels Datasheet PDF
Power (Wp)
420
Weak · bottom 16%
Efficiency (%)
21.51
Weak · bottom 20%
Density (Wp/m²)
215.1
Weak · bottom 19%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
24.5
Weak · 2.5 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The ZNShine ZXM7-UHLDD108 series are bifacial glass-glass modules designed to truly improve energy yield where every square meter of roof or ground matters. Thanks to monocrystalline N-type cells in TOPCon technology, the panels maintain their parameters over time and are less susceptible to typical operational losses, translating to more stable energy production year after year. The application of double-sided power allows utilizing reflected light from the ground - this advantage is particularly relevant for installations on light-colored roofs, carports, flat roofs, and ground-mounted structures.

Another key feature is the double glazing with anti-reflective coating, which enhances resistance to atmospheric factors and facilitates maintaining high efficiency in challenging conditions. For installers, the compatibility with 1500V systems simplifies designing larger strings in commercial projects. This is the series for clients who wish to combine the aesthetics of modern modules with predictable yield and longevity clearly distinguishing them from standard single-sided panels.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.51% 22.00% Weak · bottom 20% 7,894
Power density 215.1 220.2 Weak · bottom 19% 7,882
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 58.3 51.4 Weak · bottom 8% 11,670
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential, commercial and hot-climate.

Not ideal for

Weight-limited structures, roofs where every square metre has to count and tight roof space.

Watch-outs
58.3 kg per kWp

Bottom 8% of the TOPCon 400-450 W segment, against a median of 51.4. Ranked 11,670th in the whole database.

215.1 watts per square metre

Bottom 19% of the TOPCon 400-450 W segment, against a median of 220.2.

21.51% module efficiency

Bottom 20% of the TOPCon 400-450 W segment, against a median of 22.00%.

Notes from the database
  • At 21.5% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • 215.1 W/m² power density is 5.1 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.30%/°C matches the TOPCon 400-450W median
  • At 24.5 kg, this panel is 2.5 kg heavier than the TOPCon 400-450W median (22.0 kg) - more demanding for installation crews
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 420 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.51 % Weak Segment median 22.00%
Vmpp · Impp 31.50 V · 13.34 A Operating point at max power
Voc · Isc 38.00 V · 14.11 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 24.5 kg Weak Weak · 2.5 kg above median
Cells 108 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 367 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by ZNShine in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 420 Wp appear here. The rest cover the whole series.

Linear Power Warranty (Znshine DG Modules) Linear Power Warranty (Znshine DG Modules) 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
ZNShine ZXM7-UHLDD108-420 420 W 21.51% -0.300 24.5 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +45 W, lighter, +2.3 pp
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +45 W, cooler, +2.3 pp
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +50 W, +2.2 pp, +10 yr warranty
AIKO-A470-MAH54Mb 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +40 W, lighter, +2.1 pp
HSM-BD54-LA470 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
ZXM7-SH108-395W 395 W 20.23% -0.350 20.5 kg Hotter, -1.3 pp, -5 yr warranty
ZXM7-SH108-400W 400 W 20.48% -0.350 20.5 kg Hotter, -1.0 pp, -5 yr warranty
ZXM7-SH108-405W 405 W 20.74% -0.350 20.5 kg Hotter, lighter, -5 yr warranty
ZXM7-SH108-410W 410 W 21.00% -0.350 20.5 kg Hotter, lighter, -5 yr warranty
ZXM7-SH108-415W 415 W 21.25% -0.350 20.5 kg Hotter, lighter, -5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +90 W, cooler, +3.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +75 W, cooler, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +85 W, cooler, +3.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +70 W, cooler, +3.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +80 W, cooler, +3.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How does TOPCon technology in ZNShine ZXM7-UHLDD108 panels differ from standard PERC cells?
TOPCon (Tunnel Oxide Passivated Contact) cells use N-type monocrystalline silicon with an additional passivation layer that reduces electron recombination. This results in higher efficiency (up to 22.5%), lower power degradation over time, and better performance at high temperatures compared to cheaper P-type PERC panels. For customers, this means higher energy yield from the same roof area over the panel's lifetime.
How much extra energy do the bifacial glass-glass ZXM7-UHLDD108 modules actually generate?
These panels use a glass-glass design, so the rear side also generates electricity from light reflected off the mounting surface. Depending on the albedo of the surroundings (light-colored roofing, gravel, white membrane), the additional energy gain can range from a few percent up to 25%. Flat roofs, carports, and ground-mounted installations with bright surroundings benefit the most.
What warranty comes with ZNShine ZXM7-UHLDD108 panels, and how much power do they retain after 30 years?
The manufacturer provides a 12-year product warranty and a 30-year linear power output warranty. After 30 years of operation, the panel is guaranteed to retain at least 87.4% of its original rated power. This is a standard benchmark for the latest generation of TOPCon panels and noticeably longer than typical PERC modules, which usually cap power warranties at 25 years.
Are ZXM7-UHLDD108 panels compatible with 1500V inverter systems?
Yes, the ZXM7-UHLDD108 series is designed for installations using a 1500V DC system voltage, which is the standard for large commercial and utility-scale solar farms. This allows for longer panel strings with fewer inverters and less wiring, reducing upfront costs and simplifying electrical design for larger projects.
Can the double-glass construction of ZNShine panels withstand harsh weather and snow loads?
Yes, the glass-glass modules with anti-reflective coating withstand front-side loads of up to 5400 Pa and rear-side loads of up to 2400 Pa, meeting standards suitable for regions with heavy snow and wind loads. The dual-glass structure also protects the cells against moisture ingress and microcracks better than a standard backsheet, extending the panel's lifespan in demanding climates.
How much does the ZNShine ZXM7-UHLDD108-435 panel weigh, and does it require a reinforced roof structure?
The 435Wp panel weighs approximately 24.5 kg with dimensions of 1722x1134x30 mm, due to the double-glass construction instead of a lightweight backsheet. This is a few kilograms heavier than standard one-sided panels, so on older or lighter roof structures it's worth having an installer verify the roof's load capacity before proceeding with the installation.
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