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Sunlike Solar Brand review

SKT440M12-96D4

440 Wp HJT Bifacial 85%
ComparePV verdict

Light for its output, weak in heat

Rank 9,208 of 14,005
Compare panels Datasheet PDF
Power (Wp)
440
Typical for its class
Efficiency (%)
22.02
Typical · median 22.20%
Density (Wp/m²)
220.2
Typical · median 221.6
Temp (%/°C)
-0.260
Weak · bottom 23%
Weight (kg)
21.5
Strong · 1.5 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The Sunlike Solar SKT440-460M12-96D4 series consists of advanced photovoltaic modules based on N-type TOPCon technology, which set new standards for energy efficiency in variable weather conditions. Thanks to the use of an innovative bifacial double-glass design, these panels effectively utilize not only direct solar radiation but also light reflected from the ground, which significantly increases the total annual energy yield. A key differentiator of the series is the use of large-format M12 silicon cells and advanced SMBB architecture, which minimizes resistance losses and drastically increases the modules' resistance to micro-cracks and mechanical stress. This solution effectively eliminates the problem of rapid power degradation, offering investors long-term financial stability. These products are primarily dedicated to demanding rooftop installations and photovoltaic farms, where maximizing the use of available space is crucial. Compared to the competition, this series stands out with excellent efficiency in low sunlight conditions and an exceptionally low temperature coefficient. Choosing this technology guarantees the highest reliability and above-average structural durability, which translates into real savings and a faster return on investment in the Polish climate.

Ranking

113 panels in the segment HJT 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.02% 22.20% Typical 6,329
Power density 220.2 221.6 Typical 6,328
Temperature coefficient -0.260 -0.240 Weak · bottom 23% 511
Weight per kWp 48.9 52.4 Strong · top 12% 2,535
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Weight-limited structures.

Not ideal for

Hot climates.

Strengths
48.9 kg per kWp

Top 12% of the HJT 400-450 W segment, against a median of 52.4.

Watch-outs
-0.260 %/°C temperature coefficient

Bottom 23% of the HJT 400-450 W segment, against a median of -0.240.

Notes from the database
  • At 22.0% efficiency, this panel is on par with typical HJT 400-450W modules
  • Power density of 220.2 W/m² matches the HJT 400-450W median
  • At -0.26%/°C, loses 0.02pp more power per degree than HJT 400-450W median (-0.24%/°C)
  • 21.5 kg weight - 1.5 kg lighter than HJT 400-450W median (23.0 kg), reducing installation effort
  • 85% bifaciality enables rear-side power generation, boosting yield by 4-13% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 440 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.02 % Typical Segment median 22.20%
Vmpp · Impp 30.43 V · 14.47 A Operating point at max power
Voc · Isc 36.68 V · 15.26 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 21.5 kg Strong Strong · 1.5 kg below median
Cells 96 · HJT Monocrystalline
Bifaciality 85 % Rear output as a share of front
Coefficient Pmax -0.260 %/°C Weak bottom 23% of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 44 °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 88.0 % Equals 387 W guaranteed
Degradation 1.00 → 0.38 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Sunlike Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 440 Wp appear here. The rest cover the whole series.

Sunket Linear Warranty Sunket Linear Warranty Whole series Current-Voltage (I-V) Curve Current-Voltage (I-V) Curve Whole series Power-Voltage (P-V) Curve Power-Voltage (P-V) Curve 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
-0.260 %/°C against a segment median of -0.240
-
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
Sunlike Solar SKT440M12-96D4 440 W 22.02% -0.260 21.5 kg You are here
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +50 W, +2.5 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +50 W, +2.5 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +45 W, lighter, +2.3 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +45 W, +2.3 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +45 W, +2.3 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +45 W, +2.3 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +45 W, heavier, +2.3 pp
SKT420M10-108D6 420 W 21.02% -0.290 21.5 kg -20 W, hotter, -1.0 pp
SKT425M10-108D6 425 W 21.27% -0.290 21.5 kg -15 W, hotter, -0.8 pp
SKT445M10-108D6 445 W 22.30% -0.290 21.5 kg Hotter, +0.3 pp
SKT450M10-108D6 450 W 22.50% -0.290 21.5 kg +10 W, hotter, +0.5 pp
SKT455M10-108D6 455 W 22.80% -0.290 21.5 kg +15 W, hotter, +0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +70 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +55 W, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +65 W, cooler, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +60 W, cooler, +2.5 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Sunlike Solar SKT440~460M12-96D4 series come with?
The SKT440~460M12-96D4 series carries a 15-year product warranty and a 30-year power output warranty. For three decades, the manufacturer guarantees the modules will not exceed specified degradation thresholds. HJT technology's annual degradation rate of approximately 0.25–0.30% means real-world performance often outlasts the guaranteed period, making this series especially attractive for long-term ROI calculations.
How does HJT cell technology in the SKT440~460M12-96D4 compare to standard PERC panels?
HJT (Heterojunction Technology) cells stack amorphous and monocrystalline silicon layers, achieving higher efficiency and a better temperature coefficient (approx. -0.26%/°C) than PERC (-0.35%/°C). In real-world conditions, when a module heats up to 60–70°C in summer, the SKT440~460M12-96D4 loses significantly less power than a typical PERC panel. HJT also performs exceptionally well in low-light, diffuse-irradiance conditions common in northern European climates.
Will the bifacial design of the SKT440~460M12-96D4 actually boost energy output on my roof?
Yes, provided the surface below reflects light — a light-colored roofing membrane, white gravel, or snow cover. The bifacial double-glass construction captures reflected irradiance on the module's rear side. Ground-mounted systems typically see a bifacial gain of 5–15%; on pitched rooftops the gain is somewhat lower — around 3–8% — depending on tilt angle and roofing material albedo.
What is the rated power of a single SKT440~460M12-96D4 panel, and how many do I need for a home?
The maximum power output of the SKT440~460M12-96D4 series is 445 Wp under Standard Test Conditions (STC). A typical single-family home consuming around 4,500 kWh per year requires a system of approximately 5–6 kW, corresponding to 11–14 panels from this series. The exact count depends on roof orientation, shading, geographic location, and the MPPT configuration of the selected inverter.
Do the SKT440~460M12-96D4 panels perform well in colder climates and overcast conditions?
Yes. HJT's low temperature coefficient (approx. -0.26%/°C) cuts summer heat losses, but the technology equally excels on cold, bright winter days characteristic of Central European climates. The SKT440~460M12-96D4 series delivers above-average output under diffuse irradiance typical of autumn and winter months. The double-glass construction provides superior moisture resistance and handles repeated freeze-thaw cycles reliably.
Are the SKT440~460M12-96D4 modules suited for commercial rooftops and utility-scale solar farms?
Yes. Large-format M12 cells combined with a 96-cell SMBB architecture make the SKT440~460M12-96D4 a strong fit for commercial and utility-scale projects. High per-module wattage reaching 460 Wp reduces total module count and lowers balance-of-system (BoS) costs. The 30-year power warranty paired with HJT's inherently low degradation rate delivers a competitive LCOE for large-scale energy investors.
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